diff --git a/widget/src/xpwidgets/Makefile.in b/widget/src/xpwidgets/Makefile.in
index 184d4d78581f..224421682ceb 100644
--- a/widget/src/xpwidgets/Makefile.in
+++ b/widget/src/xpwidgets/Makefile.in
@@ -38,7 +38,7 @@ CPPSRCS= \
 	nsBaseDragService.cpp    \
 	$(NULL)
 
-ifdef FOO_NEW_CLIPBOARD_SUPPORT
+ifdef NEW_CLIPBOARD_SUPPORT
 	CPPSRCS += nsBaseClipboard.cpp
 endif