diff --git a/gb.gtk/src/gcontrol.cpp b/gb.gtk/src/gcontrol.cpp
index 5270cb2b3..ccb29bdd7 100644
--- a/gb.gtk/src/gcontrol.cpp
+++ b/gb.gtk/src/gcontrol.cpp
@@ -1735,7 +1735,7 @@ if (G_OBJECT_TYPE(widget) == type) \
 	} \
 }
 
-#define PATCH_CLASS_BASELINE(widget, type) PATCH_CLASS(widget, type)
+#define PATCH_CLASS_BASELINE PATCH_CLASS
 
 #endif