1 files changed, 2 insertions, 1 deletions
diff --git a/src/library_html5.js b/src/library_html5.js
index a28bcb85..63a4dff7 100644
--- a/src/library_html5.js
+++ b/src/library_html5.js
@@ -772,8 +772,9 @@ var LibraryJSEvents = {
 
         var confirmationMessage = Runtime.dynCall('iiii', callbackfunc, [eventTypeId, 0, userData]);
         
-        if (confirmationMessage)
+        if (confirmationMessage) {
           confirmationMessage = Pointer_stringify(confirmationMessage);
+        }
         if (confirmationMessage) {
           e.preventDefault();
           e.returnValue = confirmationMessage;