diff --git a/docker/build_and_push_ep.Dockerfile b/docker/build_and_push_ep.Dockerfile
index b13493bbd..2f6ec1a2b 100644
--- a/docker/build_and_push_ep.Dockerfile
+++ b/docker/build_and_push_ep.Dockerfile
@@ -99,6 +99,7 @@ WORKDIR /app
 
 ENV LANGFLOW_HOST=0.0.0.0
 ENV LANGFLOW_PORT=7860
+ENV LANGFLOW_EVENT_DELIVERY=polling
 
 USER 1000
 CMD ["python", "-m", "langflow", "run", "--host", "0.0.0.0", "--backend-only"]