diff --git a/_infrastructure/tests/runner.js b/_infrastructure/tests/runner.js
index d0a23087a7..3b896c84f6 100644
--- a/_infrastructure/tests/runner.js
+++ b/_infrastructure/tests/runner.js
@@ -800,7 +800,7 @@ var DefinitelyTyped;
 
             SyntaxCheking.prototype.run = function (it, file, len, maxLen, callback) {
                 var _this = this;
-                if (!endsWith(file, '-tests.ts')) {
+                if (!endsWith(file.toUpperCase(), '-TESTS.TS') && file.indexOf('../_infrastructure') < 0) {
                     new Test(file).run(function (o) {
                         var failed = false;
 
@@ -915,7 +915,7 @@ var DefinitelyTyped;
 
             TestEval.prototype.run = function (it, file, len, maxLen, callback) {
                 var _this = this;
-                if (endsWith(file, '-tests.ts')) {
+                if (endsWith(file.toUpperCase(), '-TESTS.TS')) {
                     new Test(file).run(function (o) {
                         var failed = false;
 
diff --git a/_infrastructure/tests/runner.ts b/_infrastructure/tests/runner.ts
index 8d0eeae142..d6e58ff3bc 100644
--- a/_infrastructure/tests/runner.ts
+++ b/_infrastructure/tests/runner.ts
@@ -291,8 +291,8 @@ module DefinitelyTyped {
 				}
 			}
 
-			private run(it, file, len, maxLen, callback: Function) {
-				if (!endsWith(file, '-tests.ts')) {
+            private run(it, file, len, maxLen, callback: Function) {
+                if (!endsWith(file.toUpperCase(), '-TESTS.TS') && file.indexOf('../_infrastructure') < 0) {
 					new Test(file).run((o) => {
 						var failed = false;
 
@@ -408,7 +408,7 @@ module DefinitelyTyped {
 			}
 
 			private run(it, file, len, maxLen, callback: Function) {
-				if (endsWith(file, '-tests.ts')) {
+                if (endsWith(file.toUpperCase(), '-TESTS.TS')) {
 					new Test(file).run((o) => {
 						var failed = false;