diff --git a/server/Connection.hpp b/server/Connection.hpp
index 5288690..3aadb92 100644
--- a/server/Connection.hpp
+++ b/server/Connection.hpp
@@ -16,7 +16,7 @@
 
 
 namespace World {
-class Playfield;
+struct Room;
 }
 
 namespace Connection {
@@ -108,7 +108,7 @@ public:
 
 struct Global {
     std::vector<std::shared_ptr<Client>> clients;
-    std::vector<std::shared_ptr<World::Playfield>> playfields;
+    std::vector<std::shared_ptr<World::Room>> rooms;
 };