diff --git a/src/vs/workbench/contrib/webview/browser/overlayWebview.ts b/src/vs/workbench/contrib/webview/browser/overlayWebview.ts
index e9fda114195cc..333db7ae44eb6 100644
--- a/src/vs/workbench/contrib/webview/browser/overlayWebview.ts
+++ b/src/vs/workbench/contrib/webview/browser/overlayWebview.ts
@@ -110,6 +110,10 @@ export class OverlayWebview extends Disposable implements IOverlayWebview {
 	}
 
 	public claim(owner: any, scopedContextKeyService: IContextKeyService | undefined) {
+		if (this._isDisposed) {
+			return;
+		}
+
 		const oldOwner = this._owner;
 
 		this._owner = owner;