diff --git a/lib/runtime-core/src/lib.rs b/lib/runtime-core/src/lib.rs
index 026b76eeb..662f5c970 100644
--- a/lib/runtime-core/src/lib.rs
+++ b/lib/runtime-core/src/lib.rs
@@ -8,6 +8,7 @@ extern crate field_offset;
 #[macro_use]
 extern crate serde_derive;
 
+#[allow(unused_imports)]
 #[macro_use]
 extern crate lazy_static;