diff --git a/dumux/material/constants.hh b/dumux/material/constants.hh
index a94a9778cb0bfb6c724cc259fccf7d9870ae436c..2195717cad40dcec5275689cac90c28bae8ab5a9 100644
--- a/dumux/material/constants.hh
+++ b/dumux/material/constants.hh
@@ -26,7 +26,7 @@
 #ifndef DUMUX_CONSTANTS_HH
 #define DUMUX_CONSTANTS_HH
 
-#include <math.h>
+#include <cmath>
 
 namespace Dumux
 {