diff --git a/src/saveload/vehicle_sl.cpp b/src/saveload/vehicle_sl.cpp
--- a/src/saveload/vehicle_sl.cpp
+++ b/src/saveload/vehicle_sl.cpp
@@ -22,7 +22,7 @@
 
 #include <map>
 
-/*
+/**
  * Link front and rear multiheaded engines to each other
  * This is done when loading a savegame
  */