diff --git a/modules/python/src2/cv2.cpp b/modules/python/src2/cv2.cpp
index fab60fd03f2d3fc8cbb378ee514f6a53791bf9ae..8ed6478bccdbb96867e1260a316b9c38f5b26c54 100644
--- a/modules/python/src2/cv2.cpp
+++ b/modules/python/src2/cv2.cpp
@@ -4,6 +4,7 @@
 #pragma warning(push)
 #pragma warning(disable:5033)  // 'register' is no longer a supported storage class
 #endif
+#include <math.h>
 #include <Python.h>
 #if defined(_MSC_VER) && (_MSC_VER >= 1800)
 #pragma warning(pop)