diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs
index 17e15243afd7..1e8c63b69dba 100644
--- a/library/test/src/lib.rs
+++ b/library/test/src/lib.rs
@@ -13,11 +13,6 @@
 // running tests while providing a base that other test frameworks may
 // build off of.
 
-// N.B., this is also specified in this crate's Cargo.toml, but librustc_ast contains logic specific to
-// this crate, which relies on this attribute (rather than the value of `--crate-name` passed by
-// cargo) to detect this crate.
-
-#![crate_name = "test"]
 #![unstable(feature = "test", issue = "50297")]
 #![doc(test(attr(deny(warnings))))]
 #![feature(libc)]