diff --git a/horde-members-api/app.py b/horde-members-api/app.py
index f046074..5e32a5b 100644
--- a/horde-members-api/app.py
+++ b/horde-members-api/app.py
@@ -117,6 +117,10 @@ def member2feature(member):
     }
 
 
+def normalize(x, y):
+    return x % 180 if x > 0 else x % -180, y
+
+
 class MemberResource(flask_restful.Resource):
     @flask_restful.marshal_with(member_fields)
     def get(self, id):
@@ -136,8 +140,7 @@ class MemberResource(flask_restful.Resource):
         if not member:
             member = Member(id=id, created_at=now)
         member.nick = args['nick']
-        member.x = args['x']
-        member.y = args['y']
+        member.x, member.y = normalize(args['x'], args['y'])
         member.updated_at = now
         db.session.add(member)
         db.session.commit()
@@ -196,8 +199,7 @@ class MembersResource(flask_restful.Resource):
         if not member:
             member = Member(created_at=now)
         member.user = args['nick']
-        member.x = args['x']
-        member.y = args['y']
+        member.x, member.y = normalize(args['x'], args['y'])
         member.updated_at = now
         db.session.add(member)
         db.session.commit()
@@ -238,7 +240,7 @@ class FeaturesResource(flask_restful.Resource):
         if not member:
             member = Member(created_at=now)
         member.nick = properties_args['nick']
-        member.x, member.y = geometry_args['coordinates']
+        member.x, member.y = normalize(*geometry_args['coordinates'])
         member.updated_at = now
         db.session.add(member)
         db.session.commit()