diff --git a/misc/traits.h b/misc/traits.h
index edf600f..9847d3d 100644
--- a/misc/traits.h
+++ b/misc/traits.h
@@ -2,6 +2,7 @@
 #define CPP_UTILITIES_TRAITS_H
 
 #include <iterator>
+#include <string>
 #include <type_traits>
 
 namespace CppUtilities {