diff --git a/direct/src/showbase/PythonUtil.py b/direct/src/showbase/PythonUtil.py
index 4c9afa634b..e92025a775 100644
--- a/direct/src/showbase/PythonUtil.py
+++ b/direct/src/showbase/PythonUtil.py
@@ -44,6 +44,7 @@ from panda3d.core import ConfigVariableBool
 
 if sys.version_info >= (3, 0):
     import builtins
+    from functools import reduce
     xrange = range
 else:
     import __builtin__ as builtins