diff --git a/mozilla/modules/libutil/public/Makefile.in b/mozilla/modules/libutil/public/Makefile.in
index b0a04f0747f..b12fa4b019e 100644
--- a/mozilla/modules/libutil/public/Makefile.in
+++ b/mozilla/modules/libutil/public/Makefile.in
@@ -23,14 +23,11 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 MODULE		= util
-
-XPIDL_MODULE = util
-
-XPIDLSRCS =                   \
-	nsITimeRecorder.idl        \
-	$(NULL)
+XPIDL_MODULE	= util
 
 EXPORTS		= $(srcdir)/xp_obs.h $(srcdir)/stopwatch.h
 
+XPIDLSRCS	= nsITimeRecorder.idl
+
 include $(topsrcdir)/config/rules.mk