diff --git a/include/ccmath/basic.hpp b/include/ccmath/basic.hpp
index bd8eba4c..94087903 100644
--- a/include/ccmath/basic.hpp
+++ b/include/ccmath/basic.hpp
@@ -16,3 +16,4 @@
 #include "ccmath/math/basic/min.hpp"
 #include "ccmath/math/basic/remainder.hpp"
 #include "ccmath/math/basic/remquo.hpp"
+#include "ccmath/math/basic/nan.hpp"