diff --git a/components/net/lib.rs b/components/net/lib.rs
index 3fe4fba3d2c..608190e2790 100644
--- a/components/net/lib.rs
+++ b/components/net/lib.rs
@@ -5,7 +5,6 @@
 #![feature(box_syntax)]
 #![feature(fnbox)]
 #![feature(mpsc_select)]
-#![feature(path_ext)]
 #![feature(plugin)]
 #![feature(vec_push_all)]
 #![feature(plugin)]
diff --git a/components/profile/lib.rs b/components/profile/lib.rs
index 93888cc4768..bdfabfc663a 100644
--- a/components/profile/lib.rs
+++ b/components/profile/lib.rs
@@ -5,7 +5,6 @@
 #![feature(alloc_jemalloc)]
 #![feature(box_syntax)]
 #![feature(iter_arith)]
-#![feature(slice_splits)]
 #![feature(plugin)]
 #![plugin(plugins)]