diff --git a/util/Makefile b/util/Makefile
index 6044d2adf..40e74b650 100644
--- a/util/Makefile
+++ b/util/Makefile
@@ -4,3 +4,6 @@ ifeq ($(CXX),icl)
 else
 	$(CXX) -msse2 -O3 -fopenmp -static -o psnr psnr.cc ssim.cc psnr_main.cc -Wl,--strip-all
 endif
+
+# for MacOS
+# /usr/local/bin/g++-7 -msse2 -O3 -fopenmp -Bstatic -o psnr psnr.cc ssim.cc psnr_main.cc