diff --git a/src/driver.rs b/src/driver.rs
index 216d52c8dc579b600c6f606519a7df8b6799eb14..75460ee040848143bc98531eb10343e55b937d0e 100644
--- a/src/driver.rs
+++ b/src/driver.rs
@@ -8,7 +8,6 @@ use rustc::session::config::{self, Input, ErrorOutputType};
 use syntax;
 use syntax::ast::{MetaItemKind, NestedMetaItemKind, self};
 use std::path::PathBuf;
-use std;
 
 struct SeerCompilerCalls(RustcDefaultCalls, ::ExecutionConfig);