diff --git a/include/fmt/xchar.h b/include/fmt/xchar.h
index 2865b76e..faadf230 100644
--- a/include/fmt/xchar.h
+++ b/include/fmt/xchar.h
@@ -9,7 +9,6 @@
 #define FMT_XCHAR_H_
 
 #include <cwchar>
-#include <tuple>
 
 #include "format.h"