diff --git a/elm/EloTracker.elm b/elm/EloTracker.elm
index 6ab7f48..82e2c75 100644
--- a/elm/EloTracker.elm
+++ b/elm/EloTracker.elm
@@ -17,7 +17,7 @@ import Element.Background
 
 main =
     Program.document
-        { flagsDecoder = D.field "base_url" D.string
+        { flagsDecoder = D.field "baseUrl" D.string
         , headers = headers
         , init = init
         , subscriptions = subscriptions