diff --git a/hb_server/apps/wpm/views.py b/hb_server/apps/wpm/views.py
index 9f8c6f7..e5a4d0c 100644
--- a/hb_server/apps/wpm/views.py
+++ b/hb_server/apps/wpm/views.py
@@ -213,7 +213,7 @@ class WProductViewSet(ListModelMixin, RetrieveModelMixin, GenericViewSet):
         elif wproduct.act_state == WProduct.WPR_ACT_STATE_TOCOMBTEST:
             savedict['type'] = TestRecord.TEST_COMB
         elif wproduct.act_state == WProduct.WPR_ACT_STATE_TOTEST:
-            step, need_test, _ = WpmService.get_step_info(wproduct.subproduction_plan, wproduct.step, get_next=False)
+            step, need_test, _ = WpmService.get_step_info(wproduct.subproduction_plan, wproduct.pre_step, get_next=False)
             if need_test and wproduct.step != step:
                 savedict['is_midtesting'] = True
             # if UsedStep.objects.filter(subproduction=wproduct.subproduction_plan.subproduction).first().need_test: