diff --git a/controllers/player.py b/controllers/player.py
index 5ebbf06ddba95e57c3376869c21e1a62314da3ab..2e7db04f66b7f893c653ad624041659d60eca1b0 100644
--- a/controllers/player.py
+++ b/controllers/player.py
@@ -18,6 +18,9 @@ def create():
     if (len(room_code) != 4) or (len(user_name) == 0) or (len(user_name) > 15):
         return(FAIL(CODE_SEMANTIC))
 
+    room_code = room_code.upper()
+    user_name = user_name.upper()
+
     room_record = ROOM_GET_CODE(room_code)
 
     if not room_record: