diff --git a/llvm/utils/buildit/build_llvm b/llvm/utils/buildit/build_llvm
index 994fb0696ee9dde9e4eaf608034d29653a0d5699..6aee8310463d14ac1a6da3afc9b0102cd700aa21 100755
--- a/llvm/utils/buildit/build_llvm
+++ b/llvm/utils/buildit/build_llvm
@@ -133,7 +133,7 @@ if [ \! -f Makefile.config ]; then
     || exit 1
 fi
 
-SUBVERSION=`echo $RC_ProjectSourceVersion | sed -e 's/[^.]*\.\([0-9]*\).*/\1/'`
+SUBVERSION=`echo $RC_ProjectSourceVersion | sed -e 's/.*\.\([0-9]*\).*/\1/'`
 
 if [ "x$SUBVERSION" != "x$RC_ProjectSourceVersion" ]; then
     LLVM_SUBMIT_SUBVERSION=`printf "%02d" $SUBVERSION`