diff --git a/scripts/setup_bls_build_flags.sh b/scripts/setup_bls_build_flags.sh
index 9cb62b7f2..cdff751c0 100644
--- a/scripts/setup_bls_build_flags.sh
+++ b/scripts/setup_bls_build_flags.sh
@@ -1,6 +1,8 @@
 # no shebang; to be sourced from other scripts
 
-HMY_PATH=$GOPATH/src/github.com/harmony-one
+unset -v gopath
+gopath=$(go env GOPATH)
+HMY_PATH="${gopath}/src/github.com/harmony-one"
 export CGO_CFLAGS="-I$HMY_PATH/bls/include -I$HMY_PATH/mcl/include"
 export CGO_LDFLAGS="-L$HMY_PATH/bls/lib"
 export LD_LIBRARY_PATH=$HMY_PATH/bls/lib:$HMY_PATH/mcl/lib