diff --git a/src/vs/workbench/api/browser/mainThreadNotebook.ts b/src/vs/workbench/api/browser/mainThreadNotebook.ts
index 1cd0e2fc2d32c83413699a6e4365e170258d82d1..a74dce50ca84cedd734374f066599664af11a494 100644
--- a/src/vs/workbench/api/browser/mainThreadNotebook.ts
+++ b/src/vs/workbench/api/browser/mainThreadNotebook.ts
@@ -279,7 +279,7 @@ export class MainThreadNotebooks extends Disposable implements MainThreadNoteboo
 			if (!this._editorEventListenersMapping.has(doc.toString())) {
 				const disposableStore = new DisposableStore();
 				const textModel = this._notebookService.getNotebookTextModel(doc);
-				disposableStore.add(textModel!.onDidModelChangeProxy(e => {
+				disposableStore.add(textModel!.onDidChangeContent(e => {
 					const data =
 						e.kind === NotebookCellsChangeType.ModelChange || e.kind === NotebookCellsChangeType.Initialize
 							? {
diff --git a/src/vs/workbench/contrib/notebook/browser/contrib/scm/scm.ts b/src/vs/workbench/contrib/notebook/browser/contrib/scm/scm.ts
index ad1885bbfb31113b4b9b129ea6a29bd638180553..4c431ef0a483204af1c7c504c310a2f8ff65aa31 100644
--- a/src/vs/workbench/contrib/notebook/browser/contrib/scm/scm.ts
+++ b/src/vs/workbench/contrib/notebook/browser/contrib/scm/scm.ts
@@ -43,7 +43,7 @@ export class SCMController extends Disposable implements INotebookEditorContribu
 				this.update();
 
 				if (this._notebookEditor.textModel) {
-					this._localDisposable.add(this._notebookEditor.textModel.onDidModelChangeProxy((e) => {
+					this._localDisposable.add(this._notebookEditor.textModel.onDidChangeContent((e) => {
 						this.update();
 					}));
 				}
diff --git a/src/vs/workbench/contrib/notebook/browser/viewModel/notebookViewModel.ts b/src/vs/workbench/contrib/notebook/browser/viewModel/notebookViewModel.ts
index c13e2aa0c7baad588db25a41abe4e95d91fd8132..77739cea9eda83ef29a1e1aa2128c444e57332c3 100644
--- a/src/vs/workbench/contrib/notebook/browser/viewModel/notebookViewModel.ts
+++ b/src/vs/workbench/contrib/notebook/browser/viewModel/notebookViewModel.ts
@@ -308,7 +308,7 @@ export class NotebookViewModel extends Disposable implements EditorFoldingStateD
 			this.selectionHandles = endSelectionHandles;
 		};
 
-		this._register(this._notebook.onDidModelChangeProxy(e => {
+		this._register(this._notebook.onDidChangeContent(e => {
 			let changes: NotebookCellTextModelSplice<ICell>[] = [];
 
 			if (e.kind === NotebookCellsChangeType.ModelChange || e.kind === NotebookCellsChangeType.Initialize) {
@@ -323,7 +323,7 @@ export class NotebookViewModel extends Disposable implements EditorFoldingStateD
 			}
 		}));
 
-		this._register(this._notebook.onDidModelChangeProxy(e => {
+		this._register(this._notebook.onDidChangeContent(e => {
 			if (e.kind === NotebookCellsChangeType.ChangeDocumentMetadata) {
 				this.eventDispatcher.emit([new NotebookMetadataChangedEvent(this._notebook.metadata)]);
 			}
diff --git a/src/vs/workbench/contrib/notebook/common/model/notebookTextModel.ts b/src/vs/workbench/contrib/notebook/common/model/notebookTextModel.ts
index 96f6c84309ff28dcd917d13e84e7946a6399425a..5039c4b4b59621f60d5079e7fc0d8443867b1c08 100644
--- a/src/vs/workbench/contrib/notebook/common/model/notebookTextModel.ts
+++ b/src/vs/workbench/contrib/notebook/common/model/notebookTextModel.ts
@@ -149,8 +149,8 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 	readonly onDidChangeDirty = this._onDidChangeDirty.event;
 	private readonly _emitSelections = this._register(new Emitter<number[]>());
 	get emitSelections() { return this._emitSelections.event; }
-	private _onDidModelChangeProxy = this._register(new Emitter<NotebookTextModelChangedEvent>());
-	get onDidModelChangeProxy(): Event<NotebookTextModelChangedEvent> { return this._onDidModelChangeProxy.event; }
+	private _onDidChangeContent = this._register(new Emitter<NotebookTextModelChangedEvent>());
+	get onDidChangeContent(): Event<NotebookTextModelChangedEvent> { return this._onDidChangeContent.event; }
 	private _mapping: Map<number, NotebookCellTextModel> = new Map();
 	private _cellListeners: Map<number, IDisposable> = new Map();
 	cells: NotebookCellTextModel[];
@@ -195,7 +195,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 
 		this._operationManager = new NotebookOperationManager(this._undoService, uri);
 		this._eventEmitter = new DelayedEmitter(
-			this._onDidModelChangeProxy,
+			this._onDidChangeContent,
 			() => { this._increaseVersionId(); },
 			this
 		);
@@ -242,7 +242,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 				this.setDirty(true);
 				this._increaseVersionId();
 				// this._onDidChangeContent.fire(NotebookCellsChangeType.ChangeCellContent);
-				this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
+				this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
 			});
 
 			this._cellListeners.set(mainCells[i].handle, dirtyStateListener);
@@ -333,7 +333,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 				this.setDirty(true);
 				this._increaseVersionId();
 				// this._onDidChangeContent.fire(NotebookCellsChangeType.ChangeCellContent);
-				this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
+				this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
 
 			});
 			this._cellListeners.set(cell.handle, dirtyStateListener);
@@ -417,7 +417,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 	updateNotebookMetadata(metadata: NotebookDocumentMetadata) {
 		this.metadata = metadata;
 		// this._onDidChangeContent.fire(NotebookCellsChangeType.ChangeDocumentMetadata);
-		this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeDocumentMetadata, versionId: this.versionId, metadata: this.metadata, synchronous: true });
+		this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeDocumentMetadata, versionId: this.versionId, metadata: this.metadata, synchronous: true });
 
 	}
 
@@ -435,7 +435,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 			this.setDirty(true);
 			this._increaseVersionId();
 			// this._onDidChangeContent.fire(NotebookCellsChangeType.ChangeCellContent);
-			this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
+			this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
 
 		});
 
@@ -443,7 +443,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 		this.setDirty(false);
 		// this._onDidChangeContent.fire(NotebookCellsChangeType.ModelChange);
 
-		this._onDidModelChangeProxy.fire({
+		this._onDidChangeContent.fire({
 			kind: NotebookCellsChangeType.ModelChange,
 			versionId: this._versionId, changes:
 				[[
@@ -466,7 +466,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 				this.setDirty(true);
 				this._increaseVersionId();
 				// this._onDidChangeContent.fire(NotebookCellsChangeType.ChangeCellContent);
-				this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
+				this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeCellContent, versionId: this.versionId, synchronous: true });
 			});
 
 			this._cellListeners.set(cells[i].handle, dirtyStateListener);
@@ -478,7 +478,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 
 		this._increaseVersionId();
 
-		this._onDidModelChangeProxy.fire({
+		this._onDidChangeContent.fire({
 			kind: NotebookCellsChangeType.ModelChange,
 			versionId: this._versionId, changes:
 				[[
@@ -505,7 +505,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 		// this._onDidChangeContent.fire(NotebookCellsChangeType.ModelChange);
 
 		this._increaseVersionId();
-		this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ModelChange, versionId: this._versionId, changes: [[index, count, []]], synchronous });
+		this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ModelChange, versionId: this._versionId, changes: [[index, count, []]], synchronous });
 	}
 
 	private _isCellMetadataChanged(a: NotebookCellMetadata, b: NotebookCellMetadata) {
@@ -599,7 +599,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 			cell.language = languageId;
 
 			this._increaseVersionId();
-			this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.ChangeLanguage, versionId: this._versionId, index: this.cells.indexOf(cell), language: languageId, synchronous: true });
+			this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.ChangeLanguage, versionId: this._versionId, index: this.cells.indexOf(cell), language: languageId, synchronous: true });
 		}
 	}
 
@@ -655,7 +655,7 @@ export class NotebookTextModel extends Disposable implements INotebookTextModel
 			// this._onDidChangeContent.fire(NotebookCellsChangeType.Move);
 
 			this._increaseVersionId();
-			this._onDidModelChangeProxy.fire({ kind: NotebookCellsChangeType.Move, versionId: this._versionId, index, length, newIdx, cells, synchronous });
+			this._onDidChangeContent.fire({ kind: NotebookCellsChangeType.Move, versionId: this._versionId, index, length, newIdx, cells, synchronous });
 		}
 
 		// todo, we can't emit this change as it will create a new view model and that will hold
diff --git a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
index ec51f4838fa2a51ca8722823676764fd5a579869..bc6ee9afeb8215190efa44cd955206bf4eb621e6 100644
--- a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
+++ b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
@@ -145,7 +145,7 @@ export class NotebookEditorModel extends EditorModel implements INotebookEditorM
 
 		this._register(this._notebook);
 
-		this._register(this._notebook.onDidModelChangeProxy(e => {
+		this._register(this._notebook.onDidChangeContent(e => {
 			if (e.kind !== NotebookCellsChangeType.Initialize) {
 				this._onDidChangeContent.fire();
 			}
diff --git a/src/vs/workbench/contrib/notebook/test/testNotebookEditor.ts b/src/vs/workbench/contrib/notebook/test/testNotebookEditor.ts
index 75c32be59fe276a783d3b95fd60f8db121ff1233..ba46779e926a950dd0c507ce550ea5302a924a09 100644
--- a/src/vs/workbench/contrib/notebook/test/testNotebookEditor.ts
+++ b/src/vs/workbench/contrib/notebook/test/testNotebookEditor.ts
@@ -337,8 +337,8 @@ export class NotebookEditorTestModel extends EditorModel implements INotebookEdi
 	) {
 		super();
 
-		if (_notebook && _notebook.onDidModelChangeProxy) {
-			this._register(_notebook.onDidModelChangeProxy(() => {
+		if (_notebook && _notebook.onDidChangeContent) {
+			this._register(_notebook.onDidChangeContent(() => {
 				this._dirty = true;
 				this._onDidChangeDirty.fire();
 				this._onDidChangeContent.fire();