diff --git a/flask_debugtoolbar_mongo/operation_tracker.py b/flask_debugtoolbar_mongo/operation_tracker.py
index d7dbeee..c0ae6dc 100644
--- a/flask_debugtoolbar_mongo/operation_tracker.py
+++ b/flask_debugtoolbar_mongo/operation_tracker.py
@@ -2,7 +2,11 @@
 import time
 import inspect
 import os
-import SocketServer
+
+try:
+    import SocketServer
+except ImportError:
+    import socketserver as SocketServer
 
 import flask
 from flask import current_app