diff --git a/desmume/src/gfx3d.h b/desmume/src/gfx3d.h
index f4841cfca..3647e44a2 100644
--- a/desmume/src/gfx3d.h
+++ b/desmume/src/gfx3d.h
@@ -188,7 +188,7 @@ void gfx3d_VBlankSignal();
 void gfx3d_VBlankEndSignal();
 void gfx3d_Control(unsigned long v);
 u32 gfx3d_GetGXstatus();
-void gfx3d_Add_Command_Direct(u32 addr, u32 val);
+void gfx3d_Add_Command_Direct(u32 cmd, u32 val);
 void gfx3d_Add_Command(u32 val);
 
 //other misc stuff