diff --git a/topologie/api/serializers.py b/topologie/api/serializers.py
index 18785ebb..1839fcc8 100644
--- a/topologie/api/serializers.py
+++ b/topologie/api/serializers.py
@@ -176,7 +176,7 @@ class RoomSerializer(NamespacedHMSerializer):
 
     class Meta:
         model = topologie.Room
-        fields = ("name", "details", "api_url")
+        fields = ("name", "building", "details", "api_url")
 
 
 class PortProfileSerializer(NamespacedHMSerializer):