diff --git a/src/vs/base/browser/ui/actionbar/actionbar.ts b/src/vs/base/browser/ui/actionbar/actionbar.ts
index 3fa94537ee5..aed18a7a58d 100644
--- a/src/vs/base/browser/ui/actionbar/actionbar.ts
+++ b/src/vs/base/browser/ui/actionbar/actionbar.ts
@@ -154,7 +154,7 @@ export class BaseActionItem implements IActionItem {
 		DOM.EventHelper.stop(event, true);
 
 		let context: any;
-		if (types.isUndefinedOrNull(this._context)) {
+		if (types.isUndefinedOrNull(this._context) || !types.isObject(this._context)) {
 			context = event;
 		} else {
 			context = this._context;