diff --git a/components/profile/lib.rs b/components/profile/lib.rs
index 93665b440f9..22d7aa22224 100644
--- a/components/profile/lib.rs
+++ b/components/profile/lib.rs
@@ -9,7 +9,6 @@
 
 #[macro_use] extern crate log;
 
-extern crate collections;
 extern crate libc;
 #[macro_use]
 extern crate profile_traits;
diff --git a/components/profile/time.rs b/components/profile/time.rs
index 464796006fa..133b48c09c1 100644
--- a/components/profile/time.rs
+++ b/components/profile/time.rs
@@ -4,10 +4,10 @@
 
 //! Timing functions.
 
-use collections::BTreeMap;
 use profile_traits::time::{ProfilerCategory, ProfilerChan, ProfilerMsg, TimerMetadata};
 use std::borrow::ToOwned;
 use std::cmp::Ordering;
+use std::collections::BTreeMap;
 use std::f64;
 use std::sync::mpsc::{channel, Receiver};
 use std::thread::sleep_ms;