diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index aa46c6b7c4db..f40c7a72a452 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -64,6 +64,7 @@ static WHITELIST: &'static [Crate] = &[
     Crate("cc"),
     Crate("cfg-if"),
     Crate("cmake"),
+    Crate("ena"),
     Crate("filetime"),
     Crate("flate2"),
     Crate("fuchsia-zircon"),