diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs
index 9e7a8189c81..2aa3598a0d9 100644
--- a/library/core/tests/lib.rs
+++ b/library/core/tests/lib.rs
@@ -54,7 +54,6 @@
 #![feature(const_pin)]
 #![feature(const_slice_from_raw_parts)]
 #![feature(const_raw_ptr_deref)]
-#![feature(const_assert_type)]
 #![feature(never_type)]
 #![feature(unwrap_infallible)]
 #![feature(option_unwrap_none)]