diff --git a/glutin_egl_sys/src/lib.rs b/glutin_egl_sys/src/lib.rs
index 4d8cf7f7fa..9b16bcb217 100644
--- a/glutin_egl_sys/src/lib.rs
+++ b/glutin_egl_sys/src/lib.rs
@@ -11,6 +11,7 @@
 #![allow(clippy::missing_safety_doc)]
 #![allow(clippy::manual_non_exhaustive)]
 #![allow(clippy::unnecessary_cast)]
+#![allow(unknown_lints, clippy::missing_transmute_annotations)]
 
 pub mod egl;
 
diff --git a/glutin_gles2_sys/src/lib.rs b/glutin_gles2_sys/src/lib.rs
index 42825830a8..227d960b8e 100644
--- a/glutin_gles2_sys/src/lib.rs
+++ b/glutin_gles2_sys/src/lib.rs
@@ -3,6 +3,7 @@
 #![allow(clippy::missing_safety_doc)]
 #![allow(clippy::manual_non_exhaustive)]
 #![allow(clippy::unnecessary_cast)]
+#![allow(unknown_lints, clippy::missing_transmute_annotations)]
 
 pub mod gles {
     include!(concat!(env!("OUT_DIR"), "/gles2_bindings.rs"));
diff --git a/glutin_glx_sys/src/lib.rs b/glutin_glx_sys/src/lib.rs
index 5bec303be2..48c4b25599 100644
--- a/glutin_glx_sys/src/lib.rs
+++ b/glutin_glx_sys/src/lib.rs
@@ -10,6 +10,7 @@
 #![allow(clippy::unused_unit)]
 #![allow(clippy::redundant_static_lifetimes)]
 #![allow(clippy::unnecessary_cast)]
+#![allow(unknown_lints, clippy::missing_transmute_annotations)]
 
 pub use self::glx::types::GLXContext;
 pub use x11_dl::xlib::*;
diff --git a/glutin_wgl_sys/src/lib.rs b/glutin_wgl_sys/src/lib.rs
index c9d8048b77..aae6f52b6a 100644
--- a/glutin_wgl_sys/src/lib.rs
+++ b/glutin_wgl_sys/src/lib.rs
@@ -3,6 +3,8 @@
 #![allow(clippy::missing_safety_doc)]
 #![allow(clippy::manual_non_exhaustive)]
 #![allow(clippy::unnecessary_cast)]
+#![allow(unused_imports)]
+#![allow(unknown_lints, clippy::missing_transmute_annotations)]
 
 /// WGL bindings
 pub mod wgl {