diff --git a/crates/ruff_python_formatter/src/lib.rs b/crates/ruff_python_formatter/src/lib.rs
index b40fba29670641..4303eac0d8f067 100644
--- a/crates/ruff_python_formatter/src/lib.rs
+++ b/crates/ruff_python_formatter/src/lib.rs
@@ -1,5 +1,3 @@
-extern crate core;
-
 use thiserror::Error;
 
 use ruff_formatter::format_element::tag;