diff --git a/.travis.yml b/.travis.yml
index 898d54f..8289310 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ before_install:
 
 install:
  - npm install
+ - typings install
  - composer install
 
 script:
diff --git a/package.json b/package.json
index 4255ee8..a74df92 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,7 @@
   "devDependencies": {
     "tslint": "^3.15.1",
     "typescript": "^1.8.10",
+    "typings": "^1.3.3",
     "vsce": "^1.8.1",
     "vscode": "^0.11.17"
   },