diff --git a/snippets/filter_unique.md b/snippets/filter_unique.md
index 5cc3ed8f8..5f5431514 100644
--- a/snippets/filter_unique.md
+++ b/snippets/filter_unique.md
@@ -5,7 +5,7 @@ tags: list,beginner
 
 Filters out the unique values in a list.
 
-Use `Counter` to get the count of each value in the list.
+Use a `Counter` to get the count of each value in the list.
 Use list comprehension to create a list containing only the non-unique values.
 
 ```py