diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index 1ff9c5d..1b63890 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -442,7 +442,7 @@ class DoFormSubmit(CreateAPIView, GenericAPIView):
             else:
                 for wproduct in vdata['wproducts']:
                     # 获取下一步子工序
-                    newstep, hasNext = WpmServies.get_next_step(i['subproduction_plan'], vdata['step'])
+                    newstep, hasNext = WpmServies.get_next_step(wproduct.subproduction_plan, vdata['step'])
                     wproduct.step = newstep
                     wproduct.pre_step=vdata['step']
                     if hasNext: