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-rw-r--r--src/libstd/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index 6760640d33a..5ad90a76ef8 100644
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -96,6 +96,7 @@
 
 #![crate_name = "std"]
 #![stable(feature = "grandfathered", since = "1.0.0")]
+#![feature(staged_api)]
 #![staged_api]
 #![crate_type = "rlib"]
 #![crate_type = "dylib"]