diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -1571,7 +1571,7 @@ bool AfterLoadGame()
 			if (IsBuoyTile(t) || IsDriveThroughStopTile(t) || IsTileType(t, MP_WATER)) {
 				Owner o = GetTileOwner(t);
 				if (o < MAX_COMPANIES && !Company::IsValidID(o)) {
-					Backup<CompanyByte> cur_company(_current_company, o);
+					Backup<CompanyByte> cur_company(_current_company, o, FILE_LINE);
 					ChangeTileOwner(t, o, INVALID_OWNER);
 					cur_company.Restore();
 				}