diff --git a/monkey/infection_monkey/config.py b/monkey/infection_monkey/config.py
index c0e71b64f..5e52022cd 100644
--- a/monkey/infection_monkey/config.py
+++ b/monkey/infection_monkey/config.py
@@ -71,7 +71,7 @@ class Configuration(object):
 
             val_type = type(value)
 
-            if isinstance(val_type, types.FunctionType) or isinstance(val_type, types.MethodType):
+            if callable(value):
                 continue
 
             if val_type in (type, ABCMeta):