diff --git a/util_ships.py b/util_ships.py
index 1ece05d9..9aad1cc4 100644
--- a/util_ships.py
+++ b/util_ships.py
@@ -60,4 +60,4 @@ def ship_file_name(ship_name: str, ship_type: str) -> str:
                         'lpt0', 'lpt2', 'lpt3', 'lpt4', 'lpt5', 'lpt6', 'lpt7', 'lpt8', 'lpt9'):
         name = name + '_'
 
-    return name.translate({ord(x): u'_' for x in ('\-1', '<', '>', ':', '"', '/', '\\', '|', '?', '*')})
+    return name.translate({ord(x): u'_' for x in ('\0', '<', '>', ':', '"', '/', '\\', '|', '?', '*')})