diff --git a/Cargo.toml b/Cargo.toml
index 8cf7b55..a532f05 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "anyhow"
 version = "1.0.58" # remember to update html_root_url
 authors = ["David Tolnay <dtolnay@gmail.com>"]
-categories = ["rust-patterns"]
+categories = ["rust-patterns", "no-std"]
 description = "Flexible concrete Error type built on std::error::Error"
 documentation = "https://docs.rs/anyhow"
 edition = "2018"