diff --git a/1-js/04-object-basics/07-optional-chaining/article.md b/1-js/04-object-basics/07-optional-chaining/article.md
index deb0e5a8..40b74ebe 100644
--- a/1-js/04-object-basics/07-optional-chaining/article.md
+++ b/1-js/04-object-basics/07-optional-chaining/article.md
@@ -219,4 +219,4 @@ As we can see, all of them are straightforward and simple to use. The `?.` check
 
 A chain of `?.` allows to safely access nested properties.
 
-Still, we should apply `?.` carefully, only where it's acceptable that the left part doesn't to exist. So that it won't hide programming errors from us, if they occur.
+Still, we should apply `?.` carefully, only where it's acceptable that the left part doesn't exist. So that it won't hide programming errors from us, if they occur.