diff --git a/src/libsyntax/ast.rs b/src/libsyntax/ast.rs
index fa4998ef7b5..e9031a2890a 100644
--- a/src/libsyntax/ast.rs
+++ b/src/libsyntax/ast.rs
@@ -276,8 +276,6 @@ enum crate_directive_ {
     // exists only to preserve the view items in order in case we decide to
     // pretty-print crates in the future.
     cdir_view_item(@view_item),
-
-    cdir_syntax(@path),
 }
 
 type crate_directive = spanned<crate_directive_>;
diff --git a/src/libsyntax/fold.rs b/src/libsyntax/fold.rs
index 4d51ecded01..9d57b5ae814 100644
--- a/src/libsyntax/fold.rs
+++ b/src/libsyntax/fold.rs
@@ -170,7 +170,6 @@ fn noop_fold_crate_directive(cd: crate_directive_, fld: ast_fold) ->
                          /* FIXME (#2543) */ copy attrs)
           }
           cdir_view_item(vi) => cdir_view_item(fld.fold_view_item(vi)),
-          cdir_syntax(_) => copy cd
         }
 }
 
diff --git a/src/libsyntax/parse/eval.rs b/src/libsyntax/parse/eval.rs
index f08f1954464..9a81d646306 100644
--- a/src/libsyntax/parse/eval.rs
+++ b/src/libsyntax/parse/eval.rs
@@ -124,7 +124,6 @@ fn eval_crate_directive(cx: ctx, cdir: @ast::crate_directive, prefix: &Path,
         items.push(i);
       }
       ast::cdir_view_item(vi) => view_items.push(vi),
-      ast::cdir_syntax(*) => ()
     }
 }
 //
diff --git a/src/libsyntax/visit.rs b/src/libsyntax/visit.rs
index 3bc8c7b9420..ae0de2add81 100644
--- a/src/libsyntax/visit.rs
+++ b/src/libsyntax/visit.rs
@@ -100,7 +100,6 @@ fn visit_crate_directive<E>(cd: @crate_directive, e: E, v: vt<E>) {
         visit_crate_directive(*cdir, e, v);
       },
       cdir_view_item(vi) => v.visit_view_item(vi, e, v),
-      cdir_syntax(_) => ()
     }
 }