diff --git a/docker-setup.sh b/docker-setup.sh
index 7f112c6053e..a9d79aac833 100755
--- a/docker-setup.sh
+++ b/docker-setup.sh
@@ -247,7 +247,7 @@ upsert_env "$ENV_FILE" \
   OPENCLAW_HOME_VOLUME \
   OPENCLAW_DOCKER_APT_PACKAGES
 
-if [ "$IMAGE_NAME" == "openclaw:local" ]; then
+if [[ "$IMAGE_NAME" == "openclaw:local" ]]; then
   echo "==> Building Docker image: $IMAGE_NAME"
   docker build \
     --build-arg "OPENCLAW_DOCKER_APT_PACKAGES=${OPENCLAW_DOCKER_APT_PACKAGES}" \