diff --git a/src/doc/rustc/src/lints/listing/allowed-by-default.md b/src/doc/rustc/src/lints/listing/allowed-by-default.md
index d3dfc3197e2..d2d8c471efc 100644
--- a/src/doc/rustc/src/lints/listing/allowed-by-default.md
+++ b/src/doc/rustc/src/lints/listing/allowed-by-default.md
@@ -232,7 +232,8 @@ error: lifetime name `'x` only used once
 
 ## trivial-casts
 
-This lint detects trivial casts which could be removed. Some example code
+This lint detects trivial casts which could be replaced with coercion, which may require
+type ascription or a temporary variable. Some example code
 that triggers this lint:
 
 ```rust