diff --git a/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java b/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
index 61d806f2..d25c6282 100644
--- a/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
+++ b/powerjob-server/src/main/java/com/github/kfcfans/powerjob/server/web/controller/InstanceController.java
@@ -73,8 +73,8 @@ public class InstanceController {
     }
 
     @GetMapping("/detail")
-    public ResultDTO<InstanceDetailVO> getInstanceDetail(String instanceId) {
-        return ResultDTO.success(InstanceDetailVO.from(instanceService.getInstanceDetail(Long.valueOf(instanceId))));
+    public ResultDTO<InstanceDetailVO> getInstanceDetail(Long instanceId) {
+        return ResultDTO.success(InstanceDetailVO.from(instanceService.getInstanceDetail(instanceId)));
     }
 
     @GetMapping("/log")