diff --git a/bricks/popup.js b/bricks/popup.js
index 42fc847..a148821 100644
--- a/bricks/popup.js
+++ b/bricks/popup.js
@@ -69,7 +69,7 @@ bricks.Popup = class extends bricks.VBox {
 			}
 		}
 		this.set_style('top',lt.top);
-		thos.set_style('left',lt.left);
+		this.set_style('left',lt.left);
 		this.set_style('display', 'block');
 		if (this.timeout > 0){
 			this.auto_task = schedule_once(this.auto_dismiss.bind(this), this.timeout)