diff --git a/src/inttypes/src/lib.rs b/src/inttypes/src/lib.rs
index 0ceb7bc55b..ff2007a213 100644
--- a/src/inttypes/src/lib.rs
+++ b/src/inttypes/src/lib.rs
@@ -1,3 +1,5 @@
+#![no_std]
+
 #[macro_use] extern crate stdlib;
 extern crate ctype;
 extern crate errno;