diff --git a/modules/photo/test/test_hdr.cpp b/modules/photo/test/test_hdr.cpp
index a3d69900bd..8494e81acd 100644
--- a/modules/photo/test/test_hdr.cpp
+++ b/modules/photo/test/test_hdr.cpp
@@ -79,7 +79,7 @@ void loadExposureSeq(String path, vector<Mat>& images, vector<float>& times = DE
 void loadResponseCSV(String path, Mat& response)
 {
 	response = Mat(256, 1, CV_32FC3);
-    ifstream resp_file(path);
+    ifstream resp_file(path.c_str());
 	for(int i = 0; i < 256; i++) {
 		for(int c = 0; c < 3; c++) {
 			resp_file >> response.at<Vec3f>(i)[c];
diff --git a/modules/python/src2/cv2.cpp b/modules/python/src2/cv2.cpp
index ec13c8eacd..8a231ef5a4 100644
--- a/modules/python/src2/cv2.cpp
+++ b/modules/python/src2/cv2.cpp
@@ -138,6 +138,7 @@ typedef Ptr<TonemapDurand> Ptr_TonemapDurand;
 typedef Ptr<TonemapMantiuk> Ptr_TonemapMantiuk;
 typedef Ptr<AlignMTB> Ptr_AlignMTB;
 typedef Ptr<CalibrateDebevec> Ptr_CalibrateDebevec;
+typedef Ptr<CalibrateRobertson> Ptr_CalibrateRobertson;
 typedef Ptr<MergeDebevec> Ptr_MergeDebevec;
 typedef Ptr<MergeMertens> Ptr_MergeMertens;