Index: docs/topics/forms/index.txt
===================================================================
--- docs/topics/forms/index.txt	(revision 10105)
+++ docs/topics/forms/index.txt	(working copy)
@@ -293,7 +293,7 @@
         message.
 
     ``field.is_hidden``
-        This attribute is ``True`` is the form field is a hidden field and
+        This attribute is ``True`` if the form field is a hidden field and
         ``False`` otherwise. It's not particularly useful as a template
         variable, but could be useful in conditional tests such as::