diff --git a/ocaml-lessons/lesson5/step5/step.html b/ocaml-lessons/lesson5/step5/step.html
index 1fab8a1..58195f3 100644
--- a/ocaml-lessons/lesson5/step5/step.html
+++ b/ocaml-lessons/lesson5/step5/step.html
@@ -17,7 +17,7 @@ <h3>Parentheses</h3>
 
 <br /><br />
 <p>Also, as function application takes precedence over infix operators you will
-frequently uses parentheses to make explicit the expected evaluation order, as
+frequently use parentheses to make explicit the expected evaluation order, as
 in: <code>square (1 + 1)</code> since <code>square 1+1</code> would yield
 <em>2</em>.