diff --git a/Source/diablo.h b/Source/diablo.h
index 153d9b48e..3d9f49330 100644
--- a/Source/diablo.h
+++ b/Source/diablo.h
@@ -58,7 +58,6 @@ void diablo_pause_game();
 BOOL PressEscKey();
 void DisableInputWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
 void GM_Game(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
-void PressKey(int vkey);
 void LoadGameLevel(BOOL firstflag, int lvldir);
 void game_loop(BOOL bStartup);
 void diablo_color_cyc_logic();