diff --git a/core-foundation/Cargo.toml b/core-foundation/Cargo.toml
index 245eac2..98edd47 100644
--- a/core-foundation/Cargo.toml
+++ b/core-foundation/Cargo.toml
@@ -6,6 +6,8 @@ repository = "https://github.com/servo/core-foundation-rs"
 version = "0.6.3"
 authors = ["The Servo Project Developers"]
 license = "MIT / Apache-2.0"
+categories = ["os::macos-apis"]
+keywords = ["macos", "framework", "objc"]
 
 [dependencies.core-foundation-sys]
 path = "../core-foundation-sys"