diff --git a/snippets/filter_non_unique.md b/snippets/filter_non_unique.md
index b9dd96923..71f83d003 100644
--- a/snippets/filter_non_unique.md
+++ b/snippets/filter_non_unique.md
@@ -5,13 +5,14 @@ tags: list,beginner
 
 Filters out the non-unique values in a list.
 
-Use list comprehension and `list.count()` to create a list containing only the unique values.
+Use list comprehension and `list.count()` to create a list containing only the non-unique values.
 
 ```py
 def filter_non_unique(lst):
-  return [item for item in lst if lst.count(item) == 1]
+  return [x for x in set(item for item in lst if lst.count(item) > 1)]
 ```
 
 ```py
-filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [1, 3, 5]
+filter_non_unique([1, 2, 2, 3, 4, 4, 5]) # [2, 4]
 ```
+