1 files changed, 0 insertions, 1 deletions
diff --git a/src/gui.h b/src/gui.h
index 47e687206..8b31c6c98 100644
--- a/src/gui.h
+++ b/src/gui.h
@@ -25,7 +25,6 @@ void InitializeGUI();
 
 /* settings_gui.cpp */
 void ShowGameOptions();
-void ShowGameDifficulty();
 void ShowGameSettings();
 
 /* train_gui.cpp */