diff --git a/abs/abs-tests.ts b/abs/abs-tests.ts
index 80f52f8ffd..45445bbbb6 100644
--- a/abs/abs-tests.ts
+++ b/abs/abs-tests.ts
@@ -1,5 +1,3 @@
-/// <reference path="./abs.d.ts" />
-
 import Abs from 'abs';
 
 const x: string = Abs('/foo');
diff --git a/acorn/acorn-tests.ts b/acorn/acorn-tests.ts
index 796ffc3eed..c4bed10faf 100644
--- a/acorn/acorn-tests.ts
+++ b/acorn/acorn-tests.ts
@@ -1,13 +1,12 @@
 /// <reference path="../estree/estree.d.ts" />
-/// <reference path="acorn.d.ts" />
 
 import acorn = require('acorn');
 
-var token: acorn.Token;
-var tokens: acorn.Token[];
-var comment: acorn.Comment;
-var comments: acorn.Comment[];
-var program: ESTree.Program;
+declare var token: acorn.Token;
+declare var tokens: acorn.Token[];
+declare var comment: acorn.Comment;
+declare var comments: acorn.Comment[];
+declare var program: ESTree.Program;
 var any: any;
 var string: string;