diff --git a/markup.py b/markup.py
index 7c30d77..058530a 100755
--- a/markup.py
+++ b/markup.py
@@ -210,7 +210,7 @@ def render(text: str, ctx: Optional[MarkupContext] = None) -> str:
 
 
 def macro_random(
-    ctx: MarkupContext, first: Optional[str] = None, second: Optiona[str] = None, *tail: str
+    ctx: MarkupContext, first: Optional[str] = None, second: Optional[str] = None, *tail: str
 ) -> str:
     """
     Choose a random number.