2 files changed, 4 insertions, 2 deletions
diff --git a/src/liballoc/lib.rs b/src/liballoc/lib.rs
index 676c977514f..452d2b1472f 100644
--- a/src/liballoc/lib.rs
+++ b/src/liballoc/lib.rs
@@ -88,7 +88,8 @@
 #![feature(box_syntax)]
 #![feature(cfg_target_has_atomic)]
 #![feature(coerce_unsized)]
-#![feature(const_fn)]
+#![cfg_attr(stage0, feature(const_fn))]
+#![cfg_attr(not(stage0), feature(min_const_fn))]
 #![feature(core_intrinsics)]
 #![feature(custom_attribute)]
 #![feature(dropck_eyepatch)]
diff --git a/src/liballoc/tests/lib.rs b/src/liballoc/tests/lib.rs
index 3a84f9e7e47..710c659ac53 100644
--- a/src/liballoc/tests/lib.rs
+++ b/src/liballoc/tests/lib.rs
@@ -11,7 +11,8 @@
 #![feature(allocator_api)]
 #![feature(alloc_system)]
 #![feature(box_syntax)]
-#![feature(const_fn)]
+#![cfg_attr(stage0, feature(const_fn))]
+#![cfg_attr(not(stage0), feature(min_const_fn))]
 #![feature(drain_filter)]
 #![feature(exact_size_is_empty)]
 #![feature(pattern)]