diff --git a/modules/imgproc/src/featureselect.cpp b/modules/imgproc/src/featureselect.cpp
index ff923a3e9..c5ed3e561 100644
--- a/modules/imgproc/src/featureselect.cpp
+++ b/modules/imgproc/src/featureselect.cpp
@@ -45,6 +45,7 @@
 #include <cstdio>
 #include <vector>
 #include <iostream>
+#include <functional>
 
 namespace cv
 {