diff --git a/src/main/java/com/baidu/hugegraph/config/HugeConfig.java b/src/main/java/com/baidu/hugegraph/config/HugeConfig.java
index efa3e721..2593be61 100644
--- a/src/main/java/com/baidu/hugegraph/config/HugeConfig.java
+++ b/src/main/java/com/baidu/hugegraph/config/HugeConfig.java
@@ -61,8 +61,8 @@ public HugeConfig(String configFile) {
     private void reloadIfNeed(Configuration conf) {
         if (!(conf instanceof AbstractFileConfiguration)) {
             if (conf instanceof AbstractConfiguration) {
-                AbstractConfiguration astConf = (AbstractConfiguration) conf;
-                astConf.setDelimiterParsingDisabled(true);
+                AbstractConfiguration config = (AbstractConfiguration) conf;
+                config.setDelimiterParsingDisabled(true);
             }
             return;
         }