diff --git a/msys2-build.sh b/msys2-build.sh
index c30002366..ea1cdf770 100755
--- a/msys2-build.sh
+++ b/msys2-build.sh
@@ -7,6 +7,9 @@ echo ================================================================
 # sed 's/-lm/-lm -lpcreposix/' c/Makefile.am > temp; mv temp c/Makefile.am
 # sed 's/-lm/-lm -lpcreposix/' c/unit_test/Makefile.am > temp; mv temp c/unit_test/Makefile.am
 
+sed 's/-lm/-lm -static/' c/Makefile.am > temp; mv temp c/Makefile.am
+sed 's/-lm/-lm -static/' c/unit_test/Makefile.am > temp; mv temp c/unit_test/Makefile.am
+
 sed 's/#undef MLR_ON_MSYS2/#define MLR_ON_MSYS2/' c/lib/mlr_arch.h > temp; mv temp c/lib/mlr_arch.h
 
 echo ================================================================