diff --git a/apps/inm/serializers.py b/apps/inm/serializers.py
index 774cc96d..fc17542c 100644
--- a/apps/inm/serializers.py
+++ b/apps/inm/serializers.py
@@ -121,10 +121,11 @@ class MIOItemCreateSerializer(CustomModelSerializer):
 
 class MIOItemAListSerializer(CustomModelSerializer):
     material_ = MaterialSerializer(source='material', read_only=True)
+    material_name = serializers.StringRelatedField(source='material', read_only=True)
 
     class Meta:
         model = MIOItemA
-        fields = ['material', 'batch', 'rate', 'mioitem', 'id', 'material_']
+        fields = ['material', 'batch', 'rate', 'mioitem', 'id', 'material_', 'material_name']
 
 
 class MIOItemSerializer(CustomModelSerializer):
@@ -133,6 +134,7 @@ class MIOItemSerializer(CustomModelSerializer):
     material_ = MaterialSerializer(source='material', read_only=True)
     assemb = MIOItemAListSerializer(
         source='a_mioitem', read_only=True, many=True)
+    material_name = serializers.StringRelatedField(source='material', read_only=True)
 
     class Meta:
         model = MIOItem