diff --git a/extensions/typescript/src/features/referencesCodeLensProvider.ts b/extensions/typescript/src/features/referencesCodeLensProvider.ts
index ffb5aea7554cb9421f7bf879e03f0b7d92acc63b..06e61c360c2393137141ef40fdf7bb60bfb77268 100644
--- a/extensions/typescript/src/features/referencesCodeLensProvider.ts
+++ b/extensions/typescript/src/features/referencesCodeLensProvider.ts
@@ -28,11 +28,11 @@ class ReferencesCodeLens extends CodeLens {
 export default class TypeScriptReferencesCodeLensProvider implements CodeLensProvider {
 	private enabled = false;
 
-	private onDidChangeCodeLensesEmitter = new EventEmitter<CodeLensProvider>();
+	private onDidChangeCodeLensesEmitter = new EventEmitter<void>();
 
 	public constructor(private client: ITypescriptServiceClient) { }
 
-	public get onDidChangeCodeLenses(): Event<CodeLensProvider> {
+	public get onDidChangeCodeLenses(): Event<void> {
 		return this.onDidChangeCodeLensesEmitter.event;
 	}
 
@@ -41,7 +41,7 @@ export default class TypeScriptReferencesCodeLensProvider implements CodeLensPro
 		const wasEnabled = this.enabled;
 		this.enabled = typeScriptConfig.get('referencesCodeLens.enabled', false);
 		if (wasEnabled !== this.enabled) {
-			this.onDidChangeCodeLensesEmitter.fire(this);
+			this.onDidChangeCodeLensesEmitter.fire();
 		}
 	}
 
@@ -159,4 +159,4 @@ export default class TypeScriptReferencesCodeLensProvider implements CodeLensPro
 
 		(item.childItems || []).forEach(item => this.extractReferenceableSymbols(document, item, results));
 	}
-};
\ No newline at end of file
+};
diff --git a/src/vs/vscode.d.ts b/src/vs/vscode.d.ts
index b6aa642b59bf8d7d8d3010b4f1c0fcd2a114c7e5..97d981ba5308a974f6efd6ce7cbc7b7126af0845 100644
--- a/src/vs/vscode.d.ts
+++ b/src/vs/vscode.d.ts
@@ -1598,7 +1598,7 @@ declare module 'vscode' {
 		/**
 		 * An optional event to signal that the code lenses from this provider have changed.
 		 */
-		onDidChangeCodeLenses?: Event<this>;
+		onDidChangeCodeLenses?: Event<void>;
 
 		/**
 		 * Compute a list of [lenses](#CodeLens). This call should return as fast as possible and if