diff --git a/hb_server/apps/mtm/serializers.py b/hb_server/apps/mtm/serializers.py
index 481401f..68b214b 100644
--- a/hb_server/apps/mtm/serializers.py
+++ b/hb_server/apps/mtm/serializers.py
@@ -192,7 +192,7 @@ class TechDocListSerializer(serializers.ModelSerializer):
     file_ = FileSimpleSerializer(source='file', read_only=True)
     class Meta:
         model =  TechDoc
-        exclude = '__all__'
+        fields = '__all__'
     
 class TechDocCreateSerializer(serializers.ModelSerializer):
     class Meta:
diff --git a/hb_server/apps/sam/serializers.py b/hb_server/apps/sam/serializers.py
index 3580dab..50d8845 100644
--- a/hb_server/apps/sam/serializers.py
+++ b/hb_server/apps/sam/serializers.py
@@ -1,6 +1,6 @@
 from rest_framework import serializers
 
-from .models import Contact, Customer, Vendor
+from .models import Contact, Customer
 
 
 class CustomerSerializer(serializers.ModelSerializer):