diff --git a/src/Ray.Core/Services/WeightHoldLock.cs b/src/Ray.Core/Services/WeightHoldLockGrain.cs
similarity index 96%
rename from src/Ray.Core/Services/WeightHoldLock.cs
rename to src/Ray.Core/Services/WeightHoldLockGrain.cs
index 7c17930..26c9abe 100644
--- a/src/Ray.Core/Services/WeightHoldLock.cs
+++ b/src/Ray.Core/Services/WeightHoldLockGrain.cs
@@ -4,7 +4,7 @@
 
 namespace Ray.Core.Services
 {
-    public class WeightHoldLock : Grain, IWeightHoldLock
+    public class WeightHoldLockGrain : Grain, IWeightHoldLock
     {
         long lockId = 0;
         long expireTime = 0;