diff --git a/serde_derive/src/lib.rs b/serde_derive/src/lib.rs
index cacc56e1..c625404e 100644
--- a/serde_derive/src/lib.rs
+++ b/serde_derive/src/lib.rs
@@ -1,5 +1,4 @@
 #![feature(proc_macro, proc_macro_lib)]
-#![cfg(not(test))]
 
 extern crate proc_macro;
 extern crate serde_codegen;