diff --git a/smnp.collection.md b/smnp.collection.md
index 0debf44..edd422e 100644
--- a/smnp.collection.md
+++ b/smnp.collection.md
@@ -6,7 +6,7 @@
 ## `list.flatten()`
 ## `list.contains(value)`
 ## `list.indexOf(value)`
-## `list.join(separator: string = ", :)`
+## `list.join(separator: string = ", ")`
 ## `list.isEmpty()`
 ## `list.isNotEmpty()`
 ## `list.dropIndex(index: int)`