diff --git a/Cargo.toml b/Cargo.toml
index 5dcb3e48603..b0fcd9c1569 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ authors = ["Alex Crichton <alex@alexcrichton.com>"]
 version = "0.1.0"
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-lang/crates.io"
+description = "Backend of crates.io"
 
 [workspace]
 
diff --git a/src/s3/Cargo.toml b/src/s3/Cargo.toml
index 5593b992d85..839343a19e1 100644
--- a/src/s3/Cargo.toml
+++ b/src/s3/Cargo.toml
@@ -5,6 +5,7 @@ version = "0.1.0"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT/Apache-2.0"
 repository = "https://github.com/rust-lang/crates.io"
+description = "Interaction between crates.io and S3 for storing crate files"
 
 [lib]