diff --git a/scripts/ack-optimized-os-linux3-all.sh b/scripts/ack-optimized-os-linux3-all.sh
index dc29321..ff19041 100644
--- a/scripts/ack-optimized-os-linux3-all.sh
+++ b/scripts/ack-optimized-os-linux3-all.sh
@@ -38,7 +38,7 @@ check_params() {
 
 setup_env() {
     export RUNTIME
-
+    export OS="AliyunOS"
     if [[ "$RUNTIME" = "docker" ]]; then
       RUNTIME_VERSION=${RUNTIME_VERSION:-19.03.15}
       export RUNTIME_VERSION