diff --git a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
index 2c750fafbcede907f34a945aaa0c7158c06475c1..5e27ae55b95b8e60d456181b29a55606bf335b7b 100644
--- a/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
+++ b/src/vs/workbench/contrib/notebook/common/notebookEditorModel.ts
@@ -148,6 +148,10 @@ export class NotebookEditorModel extends EditorModel implements INotebookEditorM
 			this._onDidChangeDirty.fire();
 		}));
 
+		if (forceReloadFromDisk) {
+			this._notebook.setDirty(false);
+		}
+
 		if (backupId) {
 			await this._backupFileService.discardBackup(this._workingCopyResource);
 			this._notebook.setDirty(true);