diff --git a/paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/action/MultiTablesSinkMode.java b/paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/action/MultiTablesSinkMode.java
index d5c514199589..cfba932e3601 100644
--- a/paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/action/MultiTablesSinkMode.java
+++ b/paimon-flink/paimon-flink-common/src/main/java/org/apache/paimon/flink/action/MultiTablesSinkMode.java
@@ -37,7 +37,7 @@ public enum MultiTablesSinkMode implements Serializable {
 
     public static MultiTablesSinkMode fromString(@Nullable String mode) {
         if (mode == null) {
-            return DIVIDED;
+            return COMBINED;
         }
 
         switch (mode.toLowerCase()) {