diff --git a/modules/core/include/opencv2/core/cvstd.inl.hpp b/modules/core/include/opencv2/core/cvstd.inl.hpp
index 631fe94e1a..ed37cacb30 100644
--- a/modules/core/include/opencv2/core/cvstd.inl.hpp
+++ b/modules/core/include/opencv2/core/cvstd.inl.hpp
@@ -269,6 +269,11 @@ static inline std::ostream& operator << (std::ostream& out, const MatSize& msize
     return out;
 }
 
+static inline std::ostream &operator<< (std::ostream &s, cv::Range &r)
+{
+    return s << "[" << r.start << " : " << r.end << ")";
+}
+
 } // cv
 
 #ifdef _MSC_VER
diff --git a/modules/dnn/include/opencv2/dnn/shape_utils.hpp b/modules/dnn/include/opencv2/dnn/shape_utils.hpp
index 953a437dc2..64811d8184 100644
--- a/modules/dnn/include/opencv2/dnn/shape_utils.hpp
+++ b/modules/dnn/include/opencv2/dnn/shape_utils.hpp
@@ -42,8 +42,8 @@
 #ifndef OPENCV_DNN_DNN_SHAPE_UTILS_HPP
 #define OPENCV_DNN_DNN_SHAPE_UTILS_HPP
 
-#include <opencv2/core.hpp>
-#include <opencv2/core/types_c.h>
+#include <opencv2/dnn/dnn.hpp>
+#include <opencv2/core/types_c.h>  // CV_MAX_DIM
 #include <iostream>
 #include <ostream>
 #include <sstream>
@@ -52,12 +52,6 @@ namespace cv {
 namespace dnn {
 CV__DNN_EXPERIMENTAL_NS_BEGIN
 
-//Useful shortcut
-inline std::ostream &operator<< (std::ostream &s, cv::Range &r)
-{
-    return s << "[" << r.start << ", " << r.end << ")";
-}
-
 //Slicing
 
 struct _Range : public cv::Range