diff --git a/app/templates/base.html b/app/templates/base.html
index ac51baa..8194137 100644
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -606,6 +606,7 @@
             }
             break;
           case 'delete':
+            if (!id) break;
             if (!confirm('Delete "' + name + '"?')) break;
             this.deleteWorkspacePage(id);
             break;