diff --git a/lang/en/help/index.html b/lang/en/help/index.html
index a59fba45358..5fb12826b6b 100755
--- a/lang/en/help/index.html
+++ b/lang/en/help/index.html
@@ -28,7 +28,7 @@
   <li><a href="help.php?file=courseshortname.html">Course short name</a></li>
   <li><a href="help.php?file=coursestartdate.html">Course start date</a></li>
   <li><a href="help.php?file=courseuploadsize.html">Course upload size</a></li>
-  <li><a href="help.php?file=enrolmentkey.html">Enrollment keys</a></li>
+  <li><a href="help.php?file=enrolmentkey.html">Enrolment keys</a></li>
   <li><a href="help.php?file=coursegrades.html">Grades</a></li>
   <li><a href="help.php?file=groupmode.html">Group mode</a></li>
   <li><a href="help.php?file=groupmodeforce.html">Group mode (forcing)</a></li>