diff --git a/ci/build.sh b/ci/build.sh
index dd9819f..b759bca 100755
--- a/ci/build.sh
+++ b/ci/build.sh
@@ -50,7 +50,7 @@ main() {
     mv plugin.cfg.new plugin.cfg
   fi
 
-  go mod edit -go=$(echo GO_VERSION | sed 's/^go//')
+  go mod edit -go "$(echo "${GO_VERSION}" | sed 's/^go//')"
   # 6. go mod replace plugin path to the cloned action repo
   #    This assumes the plugin lives at github.com/doubleu-labs/coredns-netbox-plugin-dns in your repo. [web:16][web:23]
   #    Adjust relative path if your repo layout differs.