diff --git a/samples/gpu/cascadeclassifier_nvidia_api.cpp b/samples/gpu/cascadeclassifier_nvidia_api.cpp
index b33b447fec..7c6cbc0dcc 100644
--- a/samples/gpu/cascadeclassifier_nvidia_api.cpp
+++ b/samples/gpu/cascadeclassifier_nvidia_api.cpp
@@ -5,6 +5,7 @@
 #include "cvconfig.h"
 #include <iostream>
 #include <iomanip>
+#include <cstdio>
 #include "opencv2/opencv.hpp"
 #include "opencv2/gpu/gpu.hpp"