diff --git a/mozilla/allmakefiles.sh b/mozilla/allmakefiles.sh
index 7fb89428599..e2e9083a4bf 100755
--- a/mozilla/allmakefiles.sh
+++ b/mozilla/allmakefiles.sh
@@ -239,6 +239,7 @@ network/protocol/sockstub/Makefile
 network/util/Makefile
 rdf/Makefile
 rdf/base/Makefile
+rdf/base/idl/Makefile
 rdf/base/public/Makefile
 rdf/base/src/Makefile
 rdf/util/Makefile