diff --git a/dom/indexedDB/IDBDatabase.cpp b/dom/indexedDB/IDBDatabase.cpp
index 5db083b605e0..5159ab5af111 100644
--- a/dom/indexedDB/IDBDatabase.cpp
+++ b/dom/indexedDB/IDBDatabase.cpp
@@ -885,7 +885,7 @@ SetVersionHelper::DoDatabaseWork(mozIStorageConnection* aConnection)
 }
 
 nsresult
-SetVersionHelper::GetSuccessResult(nsIWritableVariant* /* aResult */)
+SetVersionHelper::GetSuccessResult(nsIWritableVariant* aResult)
 {
   DatabaseInfo* info;
   if (!DatabaseInfo::Get(mDatabase->Id(), &info)) {
@@ -894,6 +894,7 @@ SetVersionHelper::GetSuccessResult(nsIWritableVariant* /* aResult */)
   }
   info->version = mVersion;
 
+  aResult->SetAsISupports(static_cast<nsPIDOMEventTarget*>(mTransaction));
   return NS_OK;
 }
 
diff --git a/dom/indexedDB/test/test_setVersion_events.html b/dom/indexedDB/test/test_setVersion_events.html
index 40928b1b1ec8..a7f41b4b2b39 100644
--- a/dom/indexedDB/test/test_setVersion_events.html
+++ b/dom/indexedDB/test/test_setVersion_events.html
@@ -13,9 +13,6 @@
   <script type="text/javascript;version=1.7">
     function testSteps()
     {
-      const VERSION_CHANGE =
-        Components.interfaces.nsIIDBTransaction.VERSION_CHANGE;
-
       const name = window.location.pathname;
       const description = "My Test Database";
 
@@ -63,7 +60,8 @@
       };
 
       event = yield;
-      is(event.transaction.mode, VERSION_CHANGE, "Correct mode");
+      ok(event.result === event.transaction, "Good result");
+      is(event.transaction.mode, IDBTransaction.VERSION_CHANGE, "Correct mode");
 
       request = moz_indexedDB.open(name, description);
       request.onerror = errorHandler;
@@ -85,7 +83,8 @@
       };
 
       event = yield;
-      is(event.transaction.mode, VERSION_CHANGE, "Correct mode");
+      ok(event.result === event.transaction, "Good result");
+      is(event.transaction.mode, IDBTransaction.VERSION_CHANGE, "Correct mode");
 
       is(versionChangeEventCount, 3, "Saw all expected events");