diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index 62c5ffdf2fdf4f64608ede4d667f9e88cf4a2ef2..2500886fb90aa0273743cc67ba40da48c6b4fa5c 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -57,7 +57,7 @@ fi
 echo "%build"
 
 if ! $PREBUILT; then
-echo "make clean && make %{_smp_mflags}"
+echo "make clean && make %{?_smp_mflags}"
 echo ""
 fi