diff --git a/dal-cluster-client/src/main/java/com/ctrip/framework/dal/cluster/client/sharding/strategy/ModShardStrategy.java b/dal-cluster-client/src/main/java/com/ctrip/framework/dal/cluster/client/sharding/strategy/ModShardStrategy.java
index 3b9d3b493..33f1355ad 100644
--- a/dal-cluster-client/src/main/java/com/ctrip/framework/dal/cluster/client/sharding/strategy/ModShardStrategy.java
+++ b/dal-cluster-client/src/main/java/com/ctrip/framework/dal/cluster/client/sharding/strategy/ModShardStrategy.java
@@ -54,7 +54,7 @@ public Set<String> getAllTableShards(String tableName) {
 
     protected int getModResult(int mod, Object shardValue) {
         long longValue = getLongValue(shardValue);
-        return (int) longValue % mod;
+        return (int) (longValue % mod);
     }
 
     protected Long getLongValue(Object value) {