2 files changed, 6 insertions, 6 deletions
diff --git a/src/libsyntax_ext/deriving/generic/mod.rs b/src/libsyntax_ext/deriving/generic/mod.rs
index b7707bfb8e5..2c329691318 100644
--- a/src/libsyntax_ext/deriving/generic/mod.rs
+++ b/src/libsyntax_ext/deriving/generic/mod.rs
@@ -1018,7 +1018,7 @@ impl<'a> MethodDef<'a> {
                                                                  struct_path,
                                                                  struct_def,
                                                                  &format!("__self_{}", i),
-                                                                 ast::Mutability::Immutable,
+                                                                 ast::Mutability::Not,
                                                                  use_temporaries);
             patterns.push(pat);
             raw_fields.push(ident_expr);
@@ -1228,8 +1228,8 @@ impl<'a> MethodDef<'a> {
                                                      type_ident,
                                                      variant,
                                                      self_arg_name,
-                                                     ast::Mutability::Immutable);
-                    (cx.pat(sp, PatKind::Ref(p, ast::Mutability::Immutable)), idents)
+                                                     ast::Mutability::Not);
+                    (cx.pat(sp, PatKind::Ref(p, ast::Mutability::Not)), idents)
                 };
 
                 // A single arm has form (&VariantK, &VariantK, ...) => BodyK
@@ -1559,7 +1559,7 @@ impl<'a> TraitDef<'a> {
         field_paths.iter()
             .map(|path| {
                 let binding_mode = if use_temporaries {
-                    ast::BindingMode::ByValue(ast::Mutability::Immutable)
+                    ast::BindingMode::ByValue(ast::Mutability::Not)
                 } else {
                     ast::BindingMode::ByRef(mutbl)
                 };
diff --git a/src/libsyntax_ext/deriving/generic/ty.rs b/src/libsyntax_ext/deriving/generic/ty.rs
index 607746597a5..b7aa8874aad 100644
--- a/src/libsyntax_ext/deriving/generic/ty.rs
+++ b/src/libsyntax_ext/deriving/generic/ty.rs
@@ -108,7 +108,7 @@ pub enum Ty<'a> {
 }
 
 pub fn borrowed_ptrty() -> PtrTy {
-    Borrowed(None, ast::Mutability::Immutable)
+    Borrowed(None, ast::Mutability::Not)
 }
 pub fn borrowed(ty: Box<Ty<'_>>) -> Ty<'_> {
     Ptr(ty, borrowed_ptrty())
@@ -268,7 +268,7 @@ pub fn get_explicit_self(cx: &ExtCtxt<'_>,
     // this constructs a fresh `self` path
     let self_path = cx.expr_self(span);
     match *self_ptr {
-        None => (self_path, respan(span, SelfKind::Value(ast::Mutability::Immutable))),
+        None => (self_path, respan(span, SelfKind::Value(ast::Mutability::Not))),
         Some(ref ptr) => {
             let self_ty =
                 respan(span,