diff --git a/mozilla/widget/tests/scribble/Scribble.cpp b/mozilla/widget/tests/scribble/Scribble.cpp
index 8ead298db8a..af0714f8ff2 100644
--- a/mozilla/widget/tests/scribble/Scribble.cpp
+++ b/mozilla/widget/tests/scribble/Scribble.cpp
@@ -21,6 +21,7 @@
 
 #include "nsIServiceManager.h"
 #include "nsIEventQueueService.h"
+#include "nsIEventQueue.h"
 #include "nsXPComCIID.h"
 #include "nsIButton.h"
 #include "nsICheckButton.h"
@@ -93,6 +94,7 @@ static PRBool			gInstalledColorMap = PR_FALSE;
 void  MyLoadImage(char *aFileName);
 
 static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
+static NS_DEFINE_IID(kEventQueueCID, NS_EVENTQUEUE_CID);
 static NS_DEFINE_IID(kCAppShellCID, NS_APPSHELL_CID);
 static NS_DEFINE_IID(kCToolkitCID, NS_TOOLKIT_CID);
 static NS_DEFINE_IID(kIEventQueueServiceIID, NS_IEVENTQUEUESERVICE_IID);
@@ -467,6 +469,7 @@ nsresult CreateApplication(int * argc, char ** argv)
 
     // register xpcom classes
     nsComponentManager::RegisterComponent(kEventQueueServiceCID, NULL, NULL, XPCOM_DLL, PR_FALSE, PR_FALSE);
+    nsComponentManager::RegisterComponent(kEventQueueCID, NULL, NULL, XPCOM_DLL, PR_FALSE, PR_FALSE);
 
     // register graphics classes
     static NS_DEFINE_IID(kCRenderingContextIID, NS_RENDERING_CONTEXT_CID);
diff --git a/mozilla/widget/tests/widget/nsWidgetTest.cpp b/mozilla/widget/tests/widget/nsWidgetTest.cpp
index 6787c39c6be..a4930e19e06 100644
--- a/mozilla/widget/tests/widget/nsWidgetTest.cpp
+++ b/mozilla/widget/tests/widget/nsWidgetTest.cpp
@@ -24,6 +24,7 @@
 #include "nsIComponentManager.h" 
 #include "nsIServiceManager.h"
 #include "nsIEventQueueService.h"
+#include "nsIEventQueue.h"
 #include "nsXPComCIID.h"
 #include "nsGfxCIID.h" 
 
@@ -161,6 +162,7 @@ static NS_DEFINE_IID(kLookAndFeelCID, NS_LOOKANDFEEL_CID);
 static NS_DEFINE_IID(kCTabWidgetCID, NS_TABWIDGET_CID);
 static NS_DEFINE_IID(kCTooltipWidgetCID, NS_TOOLTIPWIDGET_CID);
 static NS_DEFINE_IID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
+static NS_DEFINE_IID(kEventQueueCID, NS_EVENTQUEUE_CID);
 static NS_DEFINE_IID(kCAppShellCID, NS_APPSHELL_CID);
 static NS_DEFINE_IID(kCToolkitCID, NS_TOOLKIT_CID);
 
@@ -1208,6 +1210,7 @@ nsresult WidgetTest(int *argc, char **argv)
 
     // register xpcom classes
     nsComponentManager::RegisterComponent(kEventQueueServiceCID, NULL, NULL, XPCOM_DLL, PR_FALSE, PR_FALSE);
+    nsComponentManager::RegisterComponent(kEventQueueCID, NULL, NULL, XPCOM_DLL, PR_FALSE, PR_FALSE);
     
     // register widget classes
     nsComponentManager::RegisterComponent(kLookAndFeelCID, NULL, NULL, WIDGET_DLL, PR_FALSE, PR_FALSE);