diff --git a/doc/smarty3-templates.md b/doc/smarty3-templates.md
index b15c550043..0fbe503ebf 100644
--- a/doc/smarty3-templates.md
+++ b/doc/smarty3-templates.md
@@ -70,7 +70,7 @@ Field parameter:
 
 ### field_custom.tpl
 
-A customizeable template to include a custom element in the form with the usual surroundings,
+A customizable template to include a custom element in the form with the usual surroundings,
 Field parameter:
 
 0. Name of the field,