diff --git a/glossary/Strict-mode.md b/glossary/Strict-mode.md
index b61ead637..0eb07763f 100644
--- a/glossary/Strict-mode.md
+++ b/glossary/Strict-mode.md
@@ -1,4 +1,4 @@
 ### Strict mode
 
 JavaScript's strict mode is a JavaScript feature that allows developers to use a more restrictive variant of JavaScript and it can be enabled by adding `'use strict';` at the very top of their code.
-Strict mode elimiated some silent errors, might improve performance and changes the behavior or `eval` and `arguments` among other things.
+Strict mode elimiated some silent errors, might improve performance and changes the behavior of `eval` and `arguments` among other things.