diff --git a/include/omath/angle.hpp b/include/omath/angle.hpp
index 0f88ab5..07d5510 100644
--- a/include/omath/angle.hpp
+++ b/include/omath/angle.hpp
@@ -5,6 +5,8 @@
 #pragma once
 #include "omath/angles.hpp"
 #include <algorithm>
+#include <utility>
+
 
 namespace omath
 {