diff --git a/karma/karma-tests.ts b/karma/karma-tests.ts
index dd571f8ae..41076cfda 100644
--- a/karma/karma-tests.ts
+++ b/karma/karma-tests.ts
@@ -29,8 +29,8 @@ karma.runner.run({port: 9876}, (exitCode: number) => {
 });
 
 
-var Server = require('karma').Server;
-var server = new Server({port: 9876}, function(exitCode: number) {
+//var Server = require('karma').Server; => cannot use this syntax otherwise Server is of type any
+var server = new karma.Server({port: 9876}, function(exitCode: number) {
     console.log('Karma has exited with ' + exitCode);
     process.exit(exitCode);
 });
@@ -43,8 +43,8 @@ server.on('browser_register', function (browser: any) {
     console.log('A new browser was registered');
 });
 
-var runner = require('karma').runner;
-runner.run({port: 9876}, function(exitCode: number) {
+//var runner = require('karma').runner; => cannot use this syntax otherwise runner is of type any
+karma.runner.run({port: 9876}, function(exitCode: number) {
     console.log('Karma has exited with ' + exitCode);
     process.exit(exitCode);
 });