diff --git a/.travis.yml b/.travis.yml
index fbc468ff0a..d3bd5f30a4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,4 +7,5 @@ matrix:
       install:
         - npm install
       script:
+        - npm run lint
         - npm run build
diff --git a/appveyor.yml b/appveyor.yml
index 6316d34ed4..a5b11a141c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -57,6 +57,7 @@ before_build:
 
 build_script:
 - npm install
+- npm run lint
 - ps: |
     if($isLinux) {
       npm run dist:lin
diff --git a/package.json b/package.json
index bdaec99ba9..6baf952c7a 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "symlink:win": "rm -rf ./jslib && cmd /c mklink /J .\\jslib ..\\jslib",
     "symlink:mac": "npm run symlink:lin",
     "symlink:lin": "rm -rf ./jslib && ln -s ../jslib ./jslib",
-    "lint": "tslint src/**/*.ts || true",
+    "lint": "tslint src/**/*.ts",
     "lint:fix": "tslint src/**/*.ts --fix",
     "build": "concurrently -n Main,Rend -c yellow,cyan \"npm run build:main\" \"npm run build:renderer\"",
     "build:main": "webpack --config webpack.main.js",