diff --git a/src/compiletest/procsrv.rs b/src/compiletest/procsrv.rs
index b38849173897..03b04913843a 100644
--- a/src/compiletest/procsrv.rs
+++ b/src/compiletest/procsrv.rs
@@ -20,6 +20,7 @@ use run::spawn_process;
 use pipes;
 use str;
 use task;
+use vec;
 
 export run;