diff --git a/manual/setup/helm_chart_single_node.md b/manual/setup/helm_chart_single_node.md
index 31880384..3c210449 100644
--- a/manual/setup/helm_chart_single_node.md
+++ b/manual/setup/helm_chart_single_node.md
@@ -33,7 +33,7 @@ Please refer [here](./system_requirements.md) for the details of system requirem
         --from-literal=INIT_SEAFILE_ADMIN_PASSWORD='<required>' \
         --from-literal=INIT_SEAFILE_MYSQL_ROOT_PASSWORD='<required>' \
         --from-literal=REDIS_PASSWORD='' \
-        --from-literal=S3_SECRET_KEY='' \ 
+        --from-literal=S3_SECRET_KEY='' \
         --from-literal=S3_SSE_C_KEY='' 
         ```
     === "Seafile CE"