diff --git a/src/saveload/signs_sl.cpp b/src/saveload/signs_sl.cpp
--- a/src/saveload/signs_sl.cpp
+++ b/src/saveload/signs_sl.cpp
@@ -60,7 +60,7 @@ static void Load_SIGN()
 		}
 
 		/* Signs placed in scenario editor shall now be OWNER_DEITY */
-		if (IsSavegameVersionBefore(171) && si->owner == OWNER_NONE && _file_to_saveload.filetype == FT_SCENARIO) {
+		if (IsSavegameVersionBefore(171) && si->owner == OWNER_NONE && _file_to_saveload.abstract_ftype == FT_SCENARIO) {
 			si->owner = OWNER_DEITY;
 		}
 	}