diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index a83ef8451d3..39eb34c2780 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -115,8 +115,8 @@ define('PARAM_CAPABILITY',   'capability');
 
 /**
  * PARAM_CLEANHTML - cleans submitted HTML code. Note that you almost never want
- * to use this. The normal mode of operation is to use PARAM_RAW when recieving
- * the input (required/optional_param or formslib) and then sanitse the HTML
+ * to use this. The normal mode of operation is to use PARAM_RAW when receiving
+ * the input (required/optional_param or formslib) and then sanitise the HTML
  * using format_text on output. This is for the rare cases when you want to
  * sanitise the HTML on input. This cleaning may also fix xhtml strictness.
  */