diff --git a/gulpfile.js b/gulpfile.js
index 1162e70ee5..a57798c09a 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -689,9 +689,16 @@ function buildDemoSass(isProductionMode) {
 require('./scripts/snapshot/snapshot.task')(gulp, argv, buildConfig);
 
 // requires bundle.system to be run once
-gulp.task('karma', ['tests'], function() {
+gulp.task('karma', ['tests'], function(done) {
   var karma = require('karma').server;
-  return karma.start({ configFile: __dirname + '/scripts/karma/karma.conf.js' })
+  karma.start({
+    configFile: __dirname + '/scripts/karma/karma.conf.js'
+  }, function(result) {
+    if (result > 0) {
+      return done(new Error('Karma exited with an error'));
+    }
+    done();
+  });
 });
 
 gulp.task('karma-watch', ['watch.tests', 'bundle.system'], function() {
@@ -710,8 +717,15 @@ gulp.task('karma-watch', ['watch.tests', 'bundle.system'], function() {
   * some prerelease magic (see 'prepare') and copies npm package and tooling
   * files to dist.
   */
-gulp.task('prerelease', ['prepare', 'build.release'], function(done){
-  runSequence('package', done);
+gulp.task('prerelease', function(done){
+  runSequence(
+    'tslint',
+    'prepare',
+    'build.release',
+    'karma',
+    'package',
+    done
+  );
 });
 
 /**
@@ -931,11 +945,11 @@ gulp.task('tooling', function(){
 /**
  * TS LINT
  */
-gulp.task("tslint", function() {
-  var tslint = require("gulp-tslint");
-  gulp.src([
-    'ionic/**/*.ts',
-    '!ionic/**/test/**/*',
-  ]).pipe(tslint())
-    .pipe(tslint.report('verbose'));
+gulp.task('tslint', function(done) {
+  var tslint = require('gulp-tslint');
+  return gulp.src([
+      'ionic/**/*.ts',
+      '!ionic/**/test/**/*',
+    ]).pipe(tslint())
+      .pipe(tslint.report('verbose'));
 });
diff --git a/ionic/components/img/img.ts b/ionic/components/img/img.ts
index c2b49f30c3..45a6ca04d8 100644
--- a/ionic/components/img/img.ts
+++ b/ionic/components/img/img.ts
@@ -84,7 +84,7 @@ export class Img {
   }
 
   private _loaded(isLoaded: boolean) {
-    this._elementRef.nativeElement.classList[isLoaded ? 'add': 'remove']('img-loaded');
+    this._elementRef.nativeElement.classList[isLoaded ? 'add' : 'remove']('img-loaded');
   }
 
   enable(shouldEnable: boolean) {
diff --git a/ionic/platform/platform.ts b/ionic/platform/platform.ts
index 9655e9258c..b1ace1d408 100644
--- a/ionic/platform/platform.ts
+++ b/ionic/platform/platform.ts
@@ -190,7 +190,7 @@ export class Platform {
   triggerReady() {
     this._zone.run(() => {
       this._readyResolve();
-    })
+    });
   }
 
   /**
@@ -741,5 +741,5 @@ export interface PlatformVersion {
   str?: string;
   num?: number;
   major?: number;
-  minor?: number
+  minor?: number;
 }