diff --git a/Cargo.toml b/Cargo.toml
index 55317ca..67fdab5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,8 @@ repository = "https://github.com/phaazon/splines"
 documentation = "https://docs.rs/splines"
 readme = "README.md"
 
+edition = "2018"
+
 [badges]
 travis-ci = { repository = "phaazon/splines", branch = "master" }
 is-it-maintained-issue-resolution = { repository = "phaazon/splines" }
diff --git a/src/lib.rs b/src/lib.rs
index fb3f59e..4f44e42 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -61,6 +61,7 @@
 //! assert_eq!(spline.clamped_sample(-0.9), 0.); // clamped to the first key
 //! assert_eq!(spline.clamped_sample(1.1), 10.); // clamped to the last key
 //! ```
+//!
 //! # Features and customization
 //!
 //! This crate was written with features baked in and hidden behind feature-gates. The idea is that
@@ -231,13 +232,15 @@ impl<T> Spline<T> {
         let cp1 = &keys[i+1];
         let nt = normalize_time(t, cp0, cp1);
         Some(if nt < threshold { cp0.value } else { cp1.value })
-      },
+      }
+
       Interpolation::Linear => {
         let cp1 = &keys[i+1];
         let nt = normalize_time(t, cp0, cp1);
 
         Some(Interpolate::lerp(cp0.value, cp1.value, nt))
-      },
+      }
+
       Interpolation::Cosine => {
         let cp1 = &keys[i+1];
         let nt = normalize_time(t, cp0, cp1);
@@ -255,7 +258,8 @@ impl<T> Spline<T> {
         };
 
         Some(Interpolate::lerp(cp0.value, cp1.value, cos_nt))
-      },
+      }
+
       Interpolation::CatmullRom => {
         // We need at least four points for Catmull Rom; ensure we have them, otherwise, return
         // None.