diff --git a/.travis.yml b/.travis.yml
index 19f1ad2a1..125bc398f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,10 +4,6 @@ cache: yarn
 jobs:
   include:
   - stage: Test
-    env: TEST_ENV=source
-    script: yarn test
-  - env: TEST_ENV=umd
-    before_script: yarn build
     script: yarn test
   - stage: Size
     before_script: yarn build
diff --git a/karma.conf.js b/karma.conf.js
index a59c4ae11..121cacd6b 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -62,16 +62,6 @@ module.exports = function(config) {
     // },
   };
 
-  var historyAlias;
-  switch (process.env.TEST_ENV) {
-    case 'umd':
-      historyAlias = 'umd/history.js';
-      break;
-    case 'source':
-    default:
-      historyAlias = 'modules/index.js';
-  }
-
   config.set({
     customLaunchers: customLaunchers,
     browsers: ['Chrome' /*, 'Firefox'*/],
@@ -94,7 +84,7 @@ module.exports = function(config) {
       },
       resolve: {
         alias: {
-          history$: path.resolve(__dirname, historyAlias)
+          history$: path.resolve(__dirname, 'modules/index.js')
         }
       },
       plugins: [