1 files changed, 1 insertions, 0 deletions
diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 03634657a71..820a3838978 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -600,6 +600,7 @@ mod tests {
     use std::option::Option::{Some, None};
     use std::str::Str;
     use std::sync::atomic;
+    use std::sync::atomic::Ordering::{Acquire, SeqCst};
     use std::task;
     use std::kinds::Send;
     use std::vec::Vec;