diff --git a/src/lib.rs b/src/lib.rs
index 01c092b2a6b48..e3a1c4720484e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,6 +1,6 @@
 //! libc - Raw FFI bindings to platforms' system libraries
-#![crate_name = "libc"]
-#![crate_type = "rlib"]
+#![cfg_attr(feature = "rustc-dep-of-std", crate_name = "libc")]
+#![cfg_attr(feature = "rustc-dep-of-std", crate_type = "rlib")]
 #![allow(
     renamed_and_removed_lints, // Keep this order.
     unknown_lints, // Keep this order.