diff --git a/snippets/pad_number b/snippets/pad_number
index 6be988814..6fc98fe98 100644
--- a/snippets/pad_number
+++ b/snippets/pad_number
@@ -13,5 +13,5 @@ def pad_number(n, l):
 ```
 
 ```py
-pad_number(1234, 6); # 001234
+pad_number(1234, 6); # '001234'
 ```