diff --git a/Tools/scripts/gencodec.py b/Tools/scripts/gencodec.py
index b5680ee57d9..0c17dec9246 100644
--- a/Tools/scripts/gencodec.py
+++ b/Tools/scripts/gencodec.py
@@ -12,7 +12,7 @@
 first part of the map's filename ('a' in a.b.c.txt) converted to
 lowercase with hyphens replaced by underscores.
 
-The tool also write marhsalled versions of the mapping tables to the
+The tool also writes marhsalled versions of the mapping tables to the
 same location (with .mapping extension).
 
 Written by Marc-Andre Lemburg (mal@lemburg.com).