2 files changed, 3 insertions, 0 deletions
diff --git a/src/libsyntax/ext/bytes.rs b/src/libsyntax/ext/bytes.rs
index 2d1d13f16d0..2844c0b523e 100644
--- a/src/libsyntax/ext/bytes.rs
+++ b/src/libsyntax/ext/bytes.rs
@@ -15,6 +15,7 @@ use codemap::Span;
 use ext::base::*;
 use ext::base;
 use ext::build::AstBuilder;
+use std::ascii::AsciiExt;
 
 
 pub fn expand_syntax_ext<'cx>(cx: &'cx mut ExtCtxt,
diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index d53a4b0e8d1..28f7a78ddd0 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -31,6 +31,8 @@ use visit::Visitor;
 use parse::token;
 
 use std::slice;
+use std::ascii::AsciiExt;
+
 
 // if you change this list without updating src/doc/reference.md, @cmr will be sad
 static KNOWN_FEATURES: &'static [(&'static str, Status)] = &[