diff --git a/components/profile_traits/lib.rs b/components/profile_traits/lib.rs
index 1a099fb6a32..7f67575f6cb 100644
--- a/components/profile_traits/lib.rs
+++ b/components/profile_traits/lib.rs
@@ -21,6 +21,7 @@ extern crate serde_derive;
 extern crate signpost;
 extern crate util;
 
+#[allow(unsafe_code)]
 pub mod energy;
 pub mod mem;
 pub mod time;