1 files changed, 1 insertions, 0 deletions
diff --git a/engine.h b/engine.h
index 9756bdb13..52fa3a583 100644
--- a/engine.h
+++ b/engine.h
@@ -133,6 +133,7 @@ void AcceptEnginePreview(Engine *e, int player);
 void LoadCustomEngineNames(void);
 void DeleteCustomEngineNames(void);
 
+bool IsEngineBuildable(int engine, byte type);
 
 enum {
 	NUM_NORMAL_RAIL_ENGINES = 54,