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-rw-r--r--src/libstd/io/signal.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/io/signal.rs b/src/libstd/io/signal.rs
index d46f437cddd..c126866e715 100644
--- a/src/libstd/io/signal.rs
+++ b/src/libstd/io/signal.rs
@@ -20,6 +20,7 @@ definitions for a number of signals.
 */
 
 use clone::Clone;
+use collections::MutableSeq;
 use comm::{Sender, Receiver, channel};
 use io;
 use iter::Iterator;