diff --git a/deploy/mtcnn_detector.py b/deploy/mtcnn_detector.py
index 2044f1d..c7332a5 100644
--- a/deploy/mtcnn_detector.py
+++ b/deploy/mtcnn_detector.py
@@ -6,7 +6,11 @@ import math
 import cv2
 from multiprocessing import Pool
 from itertools import repeat
-from itertools import izip
+try:
+    from itertools import izip
+except ImportError:
+    izip = zip
+
 from helper import nms, adjust_input, generate_bbox, detect_first_stage_warpper
 
 class MtcnnDetector(object):