diff --git a/components/style_traits/lib.rs b/components/style_traits/lib.rs
index f47eac39bae..f1348fa79a7 100644
--- a/components/style_traits/lib.rs
+++ b/components/style_traits/lib.rs
@@ -11,8 +11,11 @@
 #![feature(custom_derive)]
 #![feature(plugin)]
 #![plugin(serde_macros)]
+#![plugin(plugins)]
 #![deny(unsafe_code)]
 
+
+
 extern crate euclid;
 extern crate rustc_serialize;
 extern crate serde;
diff --git a/ports/glutin/window.rs b/ports/glutin/window.rs
index fec6045b978..31bc358c488 100644
--- a/ports/glutin/window.rs
+++ b/ports/glutin/window.rs
@@ -724,7 +724,7 @@ impl Window {
         let headless_builder = glutin::HeadlessRendererBuilder::new(window_size.width,
                                                                     window_size.height);
         let headless_context = headless_builder.build().unwrap();
-        unsafe { headless_context.make_current() };
+        unsafe { headless_context.make_current().expect("Failed to make context current!") };
 
         gl::load_with(|s| headless_context.get_proc_address(s));