diff --git a/include/chameleon/types.h b/include/chameleon/types.h
index 1cbedc7bae8fde7f8a0cf2d5bf989df47e6a558a..6f0acad809320d25d44e910caf3cdfc568a941ad 100644
--- a/include/chameleon/types.h
+++ b/include/chameleon/types.h
@@ -22,6 +22,7 @@
 #define _chameleon_types_h_
 
 #include "chameleon/config.h"
+#include <math.h>
 
 /**
  *  System requirements