diff --git a/packaging/centos63/package.sh b/packaging/centos63/package.sh
index bbc3736d77e..00c19478ea0 100755
--- a/packaging/centos63/package.sh
+++ b/packaging/centos63/package.sh
@@ -79,7 +79,7 @@ function packaging() {
     cp -rf default $RPMDIR/SPECS
     cp -rf rhel7 $RPMDIR/SPECS
 
-    (cd $RPMDIR; rpmbuild --define "_topdir $RPMDIR" "${DEFVER}" "${DEFREL}" ${DEFPRE+"${DEFPRE}"} ${DEFOSSNOSS+"$DEFOSSNOSS"} "${DOS}" -bb SPECS/cloud.spec)
+    (cd $RPMDIR; rpmbuild --define "_topdir $RPMDIR" "${DEFVER}" "${DEFREL}" ${DEFPRE+"${DEFPRE}"} ${DEFOSSNOSS+"$DEFOSSNOSS"} ${DEFSIM+"$DEFSIM"} "${DOS}" -bb SPECS/cloud.spec)
 
     if [ $? -ne 0 ]; then
         echo "RPM Build Failed "