diff --git a/src/lib.rs b/src/lib.rs
index 145c65c4..3d7e3c32 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -36,14 +36,16 @@
 )]
 // Clippy lints.
 #![warn(
-    clippy::perf,
-    clippy::pedantic,
+    clippy::correctness,
+    clippy::suspicious,
     clippy::style,
-    clippy::nursery,
     clippy::complexity,
-    clippy::correctness,
+    clippy::pedantic,
+    clippy::nursery,
     clippy::cargo
 )]
+// Performance is extremely important.
+#![deny(clippy::perf)]
 
 // TODO: Re-export types for convenience.
 pub mod chess;