diff --git a/clapper_src/webapp.js b/clapper_src/webapp.js
index f5dca76f..e5bd1168 100644
--- a/clapper_src/webapp.js
+++ b/clapper_src/webapp.js
@@ -54,6 +54,7 @@ class ClapperWebApp extends Gio.SubprocessLauncher
         }
 
         this.remoteApp = null;
+        this.isRemoteClosing = false;
 
         if(hadError)
             debug('remote app exited with error');