diff --git a/boring-sys/Cargo.toml b/boring-sys/Cargo.toml
index 77a4f7b7..383fd571 100644
--- a/boring-sys/Cargo.toml
+++ b/boring-sys/Cargo.toml
@@ -27,5 +27,5 @@ include = [
 ]
 
 [build-dependencies]
-bindgen = "0.59"
+bindgen = { version = "0.59", default-features = false, features = ["runtime"] }
 cmake = "0.1"