--- a/engine.h	Sat Jan 22 19:41:30 2005 +0000
+++ b/engine.h	Sat Jan 22 20:23:18 2005 +0000
@@ -80,8 +80,8 @@
 };
 
 
-void AddTypeToEngines();
-void StartupEngines();
+void AddTypeToEngines(void);
+void StartupEngines(void);
 
 
 extern byte _global_cargo_id[NUM_LANDSCAPE][NUM_CARGO];
@@ -130,8 +130,8 @@
 
 void AcceptEnginePreview(Engine *e, int player);
 
-void LoadCustomEngineNames();
-void DeleteCustomEngineNames();
+void LoadCustomEngineNames(void);
+void DeleteCustomEngineNames(void);
 
 
 enum {