a example -> an example

Grahack · Oct 7, 2012 · baff52a · baff52a
1 parent cd50592
commit baff52a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst
@@ -399,7 +399,7 @@ The validation system supports callbacks to your own validation
 functions. This permits you to extend the validation class to meet your
 needs. For example, if you need to run a database query to see if the
 user is choosing a unique username, you can create a callback function
-that does that. Let's create a example of this.
+that does that. Let's create an example of this.
 
 In your controller, change the "username" rule to this::