diff --git a/src/saveload/airport_sl.cpp b/src/saveload/airport_sl.cpp
--- a/src/saveload/airport_sl.cpp
+++ b/src/saveload/airport_sl.cpp
@@ -14,7 +14,8 @@
 
 #include "saveload.h"
 
-/** Save and load the mapping between the airport id in the AirportSpec array
+/**
+ * Save and load the mapping between the airport id in the AirportSpec array
  * and the grf file it came from. */
 static const SaveLoad _airport_id_mapping_desc[] = {
 	SLE_VAR(EntityIDMapping, grfid,         SLE_UINT32),