diff --git a/nglayout.mk b/nglayout.mk
index b7cd46838de..4104f7f72bb 100644
--- a/nglayout.mk
+++ b/nglayout.mk
@@ -168,6 +168,7 @@ pull_autoconf:
 	$(CVSCO_NGLAYOUT) mozilla/build/hcpp; \
 	$(CVSCO_NGLAYOUT) mozilla/xpfe; \
 	$(CVSCO_NGLAYOUT) mozilla/Makefile.in; \
+	$(CVSCO_NGLAYOUT) mozilla/aclocal.m4; \
 	$(CVSCO_NGLAYOUT) mozilla/configure.in;
 
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