diff --git a/content/events/test/test_all_synthetic_events.html b/content/events/test/test_all_synthetic_events.html
index 82b8979ae3d..d5bd67f6ff5 100644
--- a/content/events/test/test_all_synthetic_events.html
+++ b/content/events/test/test_all_synthetic_events.html
@@ -56,6 +56,10 @@ const kEventConstructors = {
                                                           return new CallEvent(aName, aProps);
                                                        },
                                              },
+  CallGroupErrorEvent:                       { create: function (aName, aProps) {
+                                                          return new CallGroupErrorEvent(aName, aProps);
+                                                       },
+                                             },
   CFStateChangeEvent:                        { create: function (aName, aProps) {
                                                           return new CFStateChangeEvent(aName, aProps);
                                                        },
diff --git a/dom/tests/mochitest/general/test_interfaces.html b/dom/tests/mochitest/general/test_interfaces.html
index e61964040dc..2adf96f0e71 100644
--- a/dom/tests/mochitest/general/test_interfaces.html
+++ b/dom/tests/mochitest/general/test_interfaces.html
@@ -101,6 +101,7 @@ var interfaceNamesInGlobalScope =
     {name: "BoxObject", xbl: true},
     {name: "BrowserFeedWriter", desktop: true},
     {name: "CallEvent", b2g: true, pref: "dom.telephony.enabled"},
+    {name: "CallGroupErrorEvent", b2g: true, pref: "dom.telephony.enabled"},
     "CameraCapabilities",
     "CameraControl",
     "CameraManager",