diff --git a/make/mkspec.sh b/make/mkspec.sh
index 9f9e19d6..79d446fe 100644
--- a/make/mkspec.sh
+++ b/make/mkspec.sh
@@ -72,7 +72,7 @@ echo ""
 echo "%post -n $NAME-run"
 if [ "$TARGET" != mingw ]; then
 	echo "/opt/ytools/bin/jcs init"
-	echo "/sbin/mkinitrd_setup"
+	echo "if [ -x /sbin/mkinitrd_setup ]; then /sbin/mkinitrd_setup; fi"
 fi
 echo ""
 echo "%clean"