diff --git a/exercises/acronym/acronym.py b/exercises/acronym/acronym.py
index 5598265430..883b1cf6be 100644
--- a/exercises/acronym/acronym.py
+++ b/exercises/acronym/acronym.py
@@ -1,2 +1,2 @@
-def abbreviate():
+def abbreviate(words):
     pass