diff --git a/build-go.sh b/build-go.sh
index ce060a3..d3ecf31 100755
--- a/build-go.sh
+++ b/build-go.sh
@@ -15,13 +15,13 @@ tgz14="${v14}.tar.gz"
 path_v14="${install_dir}/${tgz14}"
 
 v="${1-1.17.1}"
-case $v in
+case "${v}" in
   1.16.7) new_sum="07502f16366fbc697b1b09b842d29116e6d6607c9dc42b1d7c54b96f528c7952";;
   1.17.1) new_sum="670ce36e100669f9be572a1603858ce4a64eb4b21a31fa5cdefb778609c40337";;
   *) errx "no hash found for version ${v}";;
 esac
 
-new="go$v"
+new="go${v}"
 new_dir="${install_dir}/go-${new}"
 tgznew="${new}.tar.gz"
 path_new="${install_dir}/${tgznew}"