diff --git a/src/autoreplace_gui.cpp b/src/autoreplace_gui.cpp
--- a/src/autoreplace_gui.cpp
+++ b/src/autoreplace_gui.cpp
@@ -30,8 +30,6 @@
 
 #include "safeguards.h"
 
-
-uint GetEngineListHeight(VehicleType type);
 void DrawEngineList(VehicleType type, int x, int r, int y, const GUIEngineList *eng_list, uint16 min, uint16 max, EngineID selected_id, bool show_count, GroupID selected_group);
 
 static int CDECL EngineNumberSorter(const EngineID *a, const EngineID *b)