diff --git a/ircrobots/glob.py b/ircrobots/glob.py
index 70070d9..979ee4b 100644
--- a/ircrobots/glob.py
+++ b/ircrobots/glob.py
@@ -50,5 +50,5 @@ class Glob(object):
         self._pattern = pattern
     def match(self, s: str) -> bool:
         return _match(self._pattern, s)
-def compile(pattern: str):
+def compile(pattern: str) -> Glob:
     return Glob(_collapse(pattern))