diff --git a/src/main/java/com/qs/serve/modules/bms/controller/BmsSubjectController.java b/src/main/java/com/qs/serve/modules/bms/controller/BmsSubjectController.java
index 48c24fc1..29d77acf 100644
--- a/src/main/java/com/qs/serve/modules/bms/controller/BmsSubjectController.java
+++ b/src/main/java/com/qs/serve/modules/bms/controller/BmsSubjectController.java
@@ -144,7 +144,7 @@ public class BmsSubjectController {
     public R<BmsSubject> getById(@PathVariable("id") String id){
         BmsSubject bmsSubject = bmsSubjectService.getById(id);
         if(bmsSubject.getPid()!=null && bmsSubject.getPid()!=0L){
-            BmsSubject par = bmsSubjectService.getById(id);
+            BmsSubject par = bmsSubjectService.getById(bmsSubject.getPid());
             if(par!=null){
                 bmsSubject.setParName(par.getSubjectName());
             }