diff --git a/src/citron/main.h b/src/citron/main.h
index a994a583b..729bc6aae 100644
--- a/src/citron/main.h
+++ b/src/citron/main.h
@@ -59,7 +59,7 @@ class QtControllerSelectorDialog;
 class QtProfileSelectionDialog;
 class QtSoftwareKeyboardDialog;
 class QtNXWebEngineView;
-class UpdaterDialog;
+namespace Updater { class UpdaterDialog; }
 
 enum class StartGameType { Normal, Global };