diff --git a/docs/language/informal/int64.md b/docs/language/informal/int64.md
index 20d89ab21a3..f0b4a6dda61 100644
--- a/docs/language/informal/int64.md
+++ b/docs/language/informal/int64.md
@@ -5,7 +5,7 @@ Dart - Fixed-Size Integers
 
 **Version**: 2017-09-26.
 
-**Status**: Implemented.
+**Status**: Background material, the normative source is now the language specification.
 
 This document discusses Dart's plan to switch the `int` type so that it represents 64-bit integers instead of bigints. It is part of our continued effort of changing the integer type to fixed size ([issue]).