diff --git a/hb_server/apps/pm/serializers.py b/hb_server/apps/pm/serializers.py
index 3606838..bc8f6b4 100644
--- a/hb_server/apps/pm/serializers.py
+++ b/hb_server/apps/pm/serializers.py
@@ -26,7 +26,7 @@ class ResourceCalListSerializer(serializers.ListSerializer):
 
 class SubProductionPlanListSerializer(serializers.ModelSerializer):
     workshop_ = OrganizationSimpleSerializer(source='workshop', read_only=True)
-    process_ = ProcessSimpleSerializer(source='process_', read_only=True)
+    process_ = ProcessSimpleSerializer(source='process', read_only=True)
     class Meta:
         model=SubProductionPlan
         fields = '__all__'