diff --git a/appveyor.yml b/appveyor.yml
index 503bad8..5808153 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -115,7 +115,7 @@ build_script:
 
   - cd %APPVEYOR_BUILD_FOLDER%
   # Install languages to Atom
-  - apm install language-marko language-html-swig language-svg
+  - apm install language-marko language-html-swig language-svg language-elm
   # Show current PATH
   - echo %PATH%
   # Run tests on package
diff --git a/package.json b/package.json
index e4393e9..fe09044 100644
--- a/package.json
+++ b/package.json
@@ -160,7 +160,8 @@
     "marko",
     "go",
     "golang",
-    "svg"
+    "svg",
+    "elm"
   ],
   "devDependencies": {
     "coffee-script": "^1.9.3",