diff --git a/kubernetes/components/dragonfly/cluster.yaml b/kubernetes/components/dragonfly/cluster.yaml
index 897f090b8ed1f..676682c6dd8cd 100644
--- a/kubernetes/components/dragonfly/cluster.yaml
+++ b/kubernetes/components/dragonfly/cluster.yaml
@@ -36,6 +36,7 @@ spec:
     - --dbfilename=dump
     - --maxmemory=$(MAX_MEMORY)Mi
     - --proactor_threads=2
+    - --default_lua_flags=allow-undeclared-keys
   resources:
     requests:
       cpu: 25m