diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md
index 39659473f22..71dc8c4ca0f 100644
--- a/src/doc/rustc/src/platform-support.md
+++ b/src/doc/rustc/src/platform-support.md
@@ -119,7 +119,7 @@ The `std` column in the table below has the following meanings:
 
 * ✓ indicates the full standard library is available.
 * \* indicates the target only supports [`no_std`] development.
-* ? indicates the standard library support is unknown or a work-in-progress.
+* ? indicates the standard library support is a work-in-progress.
 
 [`no_std`]: https://rust-embedded.github.io/book/intro/no-std.html