diff --git a/rlottie-sys/src/lib.rs b/rlottie-sys/src/lib.rs
index c7c1e91c..abc9bb93 100644
--- a/rlottie-sys/src/lib.rs
+++ b/rlottie-sys/src/lib.rs
@@ -1,3 +1,4 @@
+#![no_std]
 #![allow(non_camel_case_types, non_snake_case, non_upper_case_globals)]
 
 //! Unsafe Rust bindings to rlottie.