diff --git a/lite/utils/cv/paddle_image_preprocess.cc b/lite/utils/cv/paddle_image_preprocess.cc
index 873304acb1c37a0510c4370f504c6e4a0730c8ca..c1ac41e1394357bed160c28fe7113146ac02b3d9 100644
--- a/lite/utils/cv/paddle_image_preprocess.cc
+++ b/lite/utils/cv/paddle_image_preprocess.cc
@@ -14,6 +14,7 @@
 
 #include "lite/utils/cv/paddle_image_preprocess.h"
 #include <math.h>
+#include <string.h>
 #include <algorithm>
 #include <climits>
 #include "lite/utils/cv/image2tensor.h"