diff --git a/docs/howto/custom-template-tags.txt b/docs/howto/custom-template-tags.txt
index ada206f55e1..7bf698ae23e 100644
--- a/docs/howto/custom-template-tags.txt
+++ b/docs/howto/custom-template-tags.txt
@@ -272,7 +272,7 @@ Template filter code falls into one of two situations:
 
    Be careful, though. You need to do more than just mark the output as
    safe. You need to ensure it really *is* safe, and what you do depends on
-   whether auto-escaping is in effect. The idea is to write filters than
+   whether auto-escaping is in effect. The idea is to write filters that
    can operate in templates where auto-escaping is either on or off in
    order to make things easier for your template authors.