diff --git a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
index 86c5d2ffee2f52..615163b748c6bd 100644
--- a/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
+++ b/fe/fe-common/src/main/java/org/apache/doris/common/Config.java
@@ -1417,7 +1417,7 @@ public class Config extends ConfigBase {
      * The default prefix is "p_".
      */
     @ConfField(mutable = true, masterOnly = true)
-    public static String multi_partition_name_prefix = "p_";
+    public static String multi_partition_name_prefix = "p";
 
     /**
      * Control the max num of backup/restore job per db