diff --git a/probablepeople/__init__.py b/probablepeople/__init__.py
index a961b8e..c323a39 100644
--- a/probablepeople/__init__.py
+++ b/probablepeople/__init__.py
@@ -100,7 +100,7 @@ def parse(raw_string: str, type: typing.Optional[str] = None) -> list[tuple[str,
 
 
 def tag(
-    raw_string: str, type: typing.optional[str] = None
+    raw_string: str, type: typing.Optional[str] = None
 ) -> tuple[dict[str, str], str]:
     tagged = {}