diff --git a/dom/indexedDB/ipc/Makefile.in b/dom/indexedDB/ipc/Makefile.in
index 0c5df4660df..b2769d17c50 100644
--- a/dom/indexedDB/ipc/Makefile.in
+++ b/dom/indexedDB/ipc/Makefile.in
@@ -31,8 +31,7 @@ LOCAL_INCLUDES += \
 
 DEFINES += -D_IMPL_NS_LAYOUT
 
-# Bug 770046 - Cannot fail.
-# MOCHITEST_FILES = test_ipc.html
+MOCHITEST_FILES = test_ipc.html
 
 # Need to enable these tests sometime soon.
 #XPCSHELL_TESTS = unit