diff --git a/sentinel-cluster/sentinel-cluster-server-envoy-rls/src/main/java/com/alibaba/csp/sentinel/cluster/server/envoy/rls/rule/EnvoySentinelRuleConverter.java b/sentinel-cluster/sentinel-cluster-server-envoy-rls/src/main/java/com/alibaba/csp/sentinel/cluster/server/envoy/rls/rule/EnvoySentinelRuleConverter.java
index a7e65b17..8ae33c2c 100644
--- a/sentinel-cluster/sentinel-cluster-server-envoy-rls/src/main/java/com/alibaba/csp/sentinel/cluster/server/envoy/rls/rule/EnvoySentinelRuleConverter.java
+++ b/sentinel-cluster/sentinel-cluster-server-envoy-rls/src/main/java/com/alibaba/csp/sentinel/cluster/server/envoy/rls/rule/EnvoySentinelRuleConverter.java
@@ -69,7 +69,7 @@ public final class EnvoySentinelRuleConverter {
             return -1L;
         }
         // Add offset to avoid negative ID.
-        return Integer.MAX_VALUE + key.hashCode();
+        return (long) Integer.MAX_VALUE + key.hashCode();
     }
 
     public static String generateKey(String domain, EnvoyRlsRule.ResourceDescriptor descriptor) {