diff --git a/src/components/main/servo.rs b/src/components/main/servo.rs
index cc000338ae0..28c1d002584 100644
--- a/src/components/main/servo.rs
+++ b/src/components/main/servo.rs
@@ -159,7 +159,7 @@ pub extern "C" fn android_start(argc: int, argv: **u8) -> int {
 }
 
 #[cfg(not(test))]
-fn run(opts: opts::Opts) {
+pub fn run(opts: opts::Opts) {
     let mut pool_config = green::PoolConfig::new();
     pool_config.event_loop_factory = rustuv::event_loop;
     let mut pool = green::SchedPool::new(pool_config);
diff --git a/src/components/util/opts.rs b/src/components/util/opts.rs
index cae8e0fdba8..96f3f36b6c7 100644
--- a/src/components/util/opts.rs
+++ b/src/components/util/opts.rs
@@ -25,7 +25,7 @@ pub struct Opts {
     /// How many threads to use for CPU rendering (`-t`).
     ///
     /// FIXME(pcwalton): This is not currently used. All rendering is sequential.
-    n_render_threads: uint,
+    pub n_render_threads: uint,
 
     /// True to use CPU painting, false to use GPU painting via Skia-GL (`-c`). Note that
     /// compositing is always done on the GPU.