diff --git a/extensions/markdown-language-features/src/features/preview.ts b/extensions/markdown-language-features/src/features/preview.ts
index 0865b819b08d19ce59e526e1b4b75918c504ec32..bf7bf44c0ed0d894de66960994ab677b3562778c 100644
--- a/extensions/markdown-language-features/src/features/preview.ts
+++ b/extensions/markdown-language-features/src/features/preview.ts
@@ -264,7 +264,6 @@ export class DynamicMarkdownPreview extends Disposable {
 		this._onDisposeEmitter.fire();
 		this._onDisposeEmitter.dispose();
 
-		this._onDidChangeViewStateEmitter.dispose();
 		this.editor.dispose();
 		super.dispose();
 	}