diff --git a/slides/assessment.html b/slides/assessment.html
index 1b6338667b8bd70c4172f363fc05f192a515d80b..4902f96824ff3497fc404f17ba37adf792eae575 100644
--- a/slides/assessment.html
+++ b/slides/assessment.html
@@ -178,7 +178,7 @@ Text Alternatives: Provide *electronic text* alternatives for any non-text conte
 
 ???
 Why non text?
-- Can be rendered visually, auditorily, tactilely, or by any combination. 
+- Can be rendered visually, auditorially, tactilely, or by any combination. 
 - Can also be easily enlarged