diff --git a/src/vs/workbench/contrib/webview/browser/webviewEditorService.ts b/src/vs/workbench/contrib/webview/browser/webviewEditorService.ts
index 5e48e6bc5dad960e0f4b35a52837a9b8ecf899c8..bd865990708dabaf504ee187c1abb685e310f79f 100644
--- a/src/vs/workbench/contrib/webview/browser/webviewEditorService.ts
+++ b/src/vs/workbench/contrib/webview/browser/webviewEditorService.ts
@@ -258,7 +258,10 @@ export class WebviewEditorService implements IWebviewEditorService {
 	): Promise<void> {
 		const didRevive = await this.tryRevive(webview);
 		if (!didRevive) {
-			this._revivalPool.add(webview, () => { });
+			let resolve: () => void;
+			const promise = new Promise<void>(r => { resolve = r; });
+			this._revivalPool.add(webview, resolve!);
+			return promise;
 		}
 	}