diff --git a/karma.conf.js b/karma.conf.js
index 08562c287..d2f00ed92 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -36,6 +36,8 @@ module.exports = function (config) {
       dir: require('path').join(__dirname, 'coverage', project),
       subdir: '.',
       reporters: [{ type: 'html' }, { type: 'text-summary' }, { type: 'cobertura', file: 'cobertura.xml' }],
+      // include all files
+      includeAllSources: true,
     },
     junitReporter: {
       outputDir: require('path').join(__dirname, 'testresults', project),