diff --git a/src/corelib/kernel/qmath.h b/src/corelib/kernel/qmath.h
index 72057ee16d7..daaf2d411ad 100644
--- a/src/corelib/kernel/qmath.h
+++ b/src/corelib/kernel/qmath.h
@@ -10,23 +10,14 @@
 
 #include <QtCore/qglobal.h>
 #include <QtCore/qalgorithms.h>
+#include <QtCore/qnumeric.h>
 
 #if __has_include(<bit>) && __cplusplus > 201703L
 #include <bit>
 #endif
 
-#ifndef _USE_MATH_DEFINES
-#  define _USE_MATH_DEFINES
-#  define undef_USE_MATH_DEFINES
-#endif
-
 #include <cmath>
 
-#ifdef undef_USE_MATH_DEFINES
-#  undef _USE_MATH_DEFINES
-#  undef undef_USE_MATH_DEFINES
-#endif
-
 QT_BEGIN_NAMESPACE
 
 #define QT_SINE_TABLE_SIZE 256