diff --git a/format.h b/format.h
index a0b49ba0..5d3af4d3 100644
--- a/format.h
+++ b/format.h
@@ -685,7 +685,7 @@ class BasicCharTraits {
 #else
   typedef Char *CharPtr;
 #endif
-  static Char cast(wchar_t value) { return static_cast<Char>(value); }
+  static Char cast(int value) { return static_cast<Char>(value); }
 };
 
 template <typename Char>
@@ -1624,7 +1624,6 @@ inline StrFormatSpec<wchar_t> pad(
   return StrFormatSpec<wchar_t>(str, width, fill);
 }
 
-
 namespace internal {
 
 template <typename Char>