diff --git a/IPython/core/extensions.py b/IPython/core/extensions.py
index 7207247..c5677f6 100644
--- a/IPython/core/extensions.py
+++ b/IPython/core/extensions.py
@@ -26,6 +26,9 @@ from urlparse import urlparse
 from IPython.core.error import UsageError
 from IPython.config.configurable import Configurable
 from IPython.utils.traitlets import Instance
+from IPython.utils.py3compat import PY3
+if PY3:
+    from imp import reload
 
 #-----------------------------------------------------------------------------
 # Main class