diff --git a/1-js/06-advanced-functions/03-closure/4-closure-sum/solution.md b/1-js/06-advanced-functions/03-closure/4-closure-sum/solution.md
index e8c8c465..a6679cd2 100644
--- a/1-js/06-advanced-functions/03-closure/4-closure-sum/solution.md
+++ b/1-js/06-advanced-functions/03-closure/4-closure-sum/solution.md
@@ -1,4 +1,4 @@
-For the second brackets to work, the first ones must return a function.
+For the second parentheses to work, the first ones must return a function.
 
 Like this:
 
diff --git a/1-js/06-advanced-functions/03-closure/4-closure-sum/task.md b/1-js/06-advanced-functions/03-closure/4-closure-sum/task.md
index c2f3eabe..b4575856 100644
--- a/1-js/06-advanced-functions/03-closure/4-closure-sum/task.md
+++ b/1-js/06-advanced-functions/03-closure/4-closure-sum/task.md
@@ -6,7 +6,7 @@ importance: 4
 
 Write function `sum` that works like this: `sum(a)(b) = a+b`.
 
-Yes, exactly this way, via double brackets (not a mistype).
+Yes, exactly this way, using double parentheses (not a mistype).
 
 For instance: