diff --git a/lang/en/form.php b/lang/en/form.php
index c18c1900e46..fdc8b66b7f5 100644
--- a/lang/en/form.php
+++ b/lang/en/form.php
@@ -44,7 +44,7 @@ $string['minute'] = 'Minute';
 $string['miscellaneoussettings'] = 'Miscellaneous Settings';
 $string['modstandardels'] = 'Common module settings';
 $string['month'] = 'Month';
-$string['mustbeoverriden'] = 'Abstract form_definition() method in class {$a} must be overriden, please fix the code.';
+$string['mustbeoverriden'] = 'Abstract form_definition() method in class {$a} must be overridden, please fix the code.';
 $string['nomethodforaddinghelpbutton'] = 'There is no method for adding a help button to form element {$a->name} (class {$a->classname})';
 $string['nonexistentformelements'] = 'Trying to add help buttons to nonexistent form elements : {$a}';
 $string['optional'] = 'Optional';