diff --git a/Cargo.toml b/Cargo.toml
index b54bd0c4..9c70d78b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 authors = ["Jimmy Cuadra <jimmy@jimmycuadra.com>"]
-categories ["api-bindings", "web-programming"]
+categories = ["api-bindings", "web-programming"]
 description = "An abstraction for Matrix API endpoints."
 documentation = "https://docs.rs/ruma-api"
 homepage = "https://github.com/ruma/ruma-api"