diff --git a/components/derive_common/lib.rs b/components/derive_common/lib.rs
index 1e8d20aa32d..14415351449 100644
--- a/components/derive_common/lib.rs
+++ b/components/derive_common/lib.rs
@@ -3,7 +3,6 @@
  * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
 extern crate darling;
-extern crate proc_macro;
 extern crate proc_macro2;
 #[macro_use]
 extern crate quote;