diff --git a/whatwg-fetch/whatwg-fetch-tests.ts b/whatwg-fetch/whatwg-fetch-tests.ts
index 97141e0eef..3a27d58d20 100644
--- a/whatwg-fetch/whatwg-fetch-tests.ts
+++ b/whatwg-fetch/whatwg-fetch-tests.ts
@@ -1,38 +1,38 @@
 
 
-function test_HeadersCopiedFromHeaders() {
+function test_HeadersCopiedFromHeaders1() {
 	var source = new Headers();
 	source.append('Content-Type', 'application/json');
 	return new Headers(source);
 }
 
-function test_HeadersCopiedFromHash() {
+function test_HeadersCopiedFromHash1() {
 	var source:HeadersMap = {
 		'Content-Type': 'application/json'
 	};
 	return new Headers(source);
 }
 
-function test_HeadersCopiedFromHeaders() {
+function test_HeadersCopiedFromHeaders2() {
 	var source = new Headers();
 	source.append('Content-Type', 'application/json');
 	return new Headers(source);
 }
 
-function test_HeadersCopiedFromHash() {
+function test_HeadersCopiedFromHash2() {
 	var source:HeadersMap = {
 		'Content-Type': 'application/json'
 	};
 	return new Headers(source);
 }
 
-function test_HeadersCopiedFromHeaders() {
+function test_HeadersCopiedFromHeaders3() {
 	var source = new Headers();
 	source.append('Content-Type', 'application/json');
 	return new Headers(source);
 }
 
-function test_HeadersCopiedFromHash() {
+function test_HeadersCopiedFromHash3() {
 	var source:HeadersMap = {
 		'Content-Type': 'application/json'
 	};