diff --git a/build.sh b/build.sh
index c6b4923f..0863a296 100755
--- a/build.sh
+++ b/build.sh
@@ -97,7 +97,7 @@ elif [ "${1}" == "lsc" ]; then
     sed -i "s/logo.ico/Lanxum_logo.ico/g" HGScannerTmp.pro
 fi
 
-qmake -makefile HGScannerTmp.pro
+qmake -qt=qt5 -makefile HGScannerTmp.pro
 make -j6
 rm -f *.o
 rm -f *.h