diff --git a/Lib/inspect.py b/Lib/inspect.py
index d3d946d..230df2b 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -161,6 +161,7 @@
     if (isfunction(object) or ismethod(object)) and \
         object.func_code.co_flags & CO_GENERATOR:
         return True
+    return False
 
 def isgenerator(object):
     """Return true if the object is a generator.