diff --git a/mingw-qt5-qtserialport.spec b/mingw-qt5-qtserialport.spec
index f49f7c2..7fbc21e 100644
--- a/mingw-qt5-qtserialport.spec
+++ b/mingw-qt5-qtserialport.spec
@@ -84,7 +84,7 @@ mkdir .git
 
 %build
 %mingw_qmake_qt5 ../%{qt_module}.pro
-%mingw_make %{?_smp_mflags}
+%mingw_make_build
 
 
 %install