diff --git a/assets/js/components/calls/window.js b/assets/js/components/calls/window.js
index e1b88ff8..a8c6216d 100644
--- a/assets/js/components/calls/window.js
+++ b/assets/js/components/calls/window.js
@@ -358,6 +358,10 @@ class CallWindow extends CustomEvents {
 			audio: true
 		})
 
+		// Check if the window was closed in the mean time
+		if(!this.isOpen)
+			return
+
 		// Show user video
 		this.addVideoStream(userID(), true, stream)