diff --git a/README.md b/README.md
index 11e20084..c92a25b8 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@
 [![IRC: #rocket on irc.mozilla.org](https://img.shields.io/badge/style-%23rocket-blue.svg?style=flat&label=mozilla)](https://kiwiirc.com/client/irc.mozilla.org/#rocket)
 
 Rocket is web framework for Rust (nightly) with a focus on ease-of-use,
-expressiveness, and speed. Here's an example of a complete Rocket application:
+expressibility, and speed. Here's an example of a complete Rocket application:
 
 ```rust
 #![feature(plugin)]
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 58202965..f9e32d93 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -3,7 +3,7 @@ name = "rocket"
 version = "0.1.6"
 authors = ["Sergio Benitez <sb@sergio.bz>"]
 description = """
-Web framework for nightly with a focus on ease-of-use, expressiveness, and speed.
+Web framework for nightly with a focus on ease-of-use, expressibility, and speed.
 """
 documentation = "https://api.rocket.rs/rocket/"
 homepage = "https://rocket.rs"