diff --git a/src/lib.rs b/src/lib.rs
index 6f2c7a9..563d02d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,5 @@
 #![feature(fn_traits, unboxed_closures, const_extern_fn)]
+#![no_std]
 
 //! # Overloadf
 //!