diff --git a/Lib/rlcompleter.py b/Lib/rlcompleter.py
index 3784cdb35d1..53de2969df5 100644
--- a/Lib/rlcompleter.py
+++ b/Lib/rlcompleter.py
@@ -93,7 +93,7 @@ class Completer:
             return None
 
     def _callable_postfix(self, val, word):
-        if callable(val):
+        if hasattr(val, '__call__'):
             word = word + "("
         return word