diff --git a/openapi.yml b/openapi.yml
index 3031ba9a4..50312c1ce 100644
--- a/openapi.yml
+++ b/openapi.yml
@@ -4838,7 +4838,9 @@ components:
           type: string
           maxLength: 200
         region:
-          $ref: '#/components/schemas/RegionSummary'
+          oneOf:
+          - $ref: '#/components/schemas/RegionSummary'
+          - type: 'null'
         names:
           type: array
           items:
diff --git a/pokemon_v2/serializers.py b/pokemon_v2/serializers.py
index 7105c9d25..f4c4809fa 100644
--- a/pokemon_v2/serializers.py
+++ b/pokemon_v2/serializers.py
@@ -1154,7 +1154,7 @@ class Meta:
 
 
 class LocationDetailSerializer(serializers.ModelSerializer[Location]):
-    region = RegionSummarySerializer()
+    region = RegionSummarySerializer(allow_null=True)
     names = LocationNameSerializer(many=True, read_only=True, source="locationname")
     game_indices = LocationGameIndexSerializer(many=True, read_only=True, source="locationgameindex")
     areas = LocationAreaSummarySerializer(many=True, read_only=True, source="locationarea")