diff --git a/mozilla/webshell/tests/viewer/Makefile.in b/mozilla/webshell/tests/viewer/Makefile.in
index 0c63289eded..aed9701b8b1 100644
--- a/mozilla/webshell/tests/viewer/Makefile.in
+++ b/mozilla/webshell/tests/viewer/Makefile.in
@@ -111,6 +111,10 @@ RESFILE		= viewer.res
 XP_DIST_LIBS    += -lxpwidgets_s -ldbgrobot -lwidget_windows
 endif
 
+ifeq ($(OS_ARCH),OS2)
+RESFILE		= vieweros2.res
+endif
+
 ifdef MOZ_OJI
 ifeq ($(OS_ARCH),WINNT)
 XP_DIST_LIBS		+= -ljsj$(MOZ_BITS)$(VERSION_NUMBER)
diff --git a/mozilla/webshell/tests/viewer/vieweros2.rc b/mozilla/webshell/tests/viewer/vieweros2.rc
index 49446c9eeb2..56ceeea7424 100644
--- a/mozilla/webshell/tests/viewer/vieweros2.rc
+++ b/mozilla/webshell/tests/viewer/vieweros2.rc
@@ -37,7 +37,7 @@
 #include "resources.h"
 #include <os2.h>
 
-
+#define IDM_VIEWERBAR  40990
 
 MENU IDM_VIEWERBAR
 {