diff --git a/lib/services/test-execution-service.ts b/lib/services/test-execution-service.ts
index f62daba04f..d16da4b885 100644
--- a/lib/services/test-execution-service.ts
+++ b/lib/services/test-execution-service.ts
@@ -6,6 +6,7 @@ import { RunController } from "../controllers/run-controller";
 interface IKarmaConfigOptions {
 	debugBrk: boolean;
 	debugTransport: boolean;
+	appPath: string;
 }
 
 export class TestExecutionService implements ITestExecutionService {
@@ -156,6 +157,7 @@ export class TestExecutionService implements ITestExecutionService {
 		karmaConfig.projectDir = projectData.projectDir;
 		karmaConfig.bundle = true;
 		karmaConfig.debugBrk = this.$options.debugBrk;
+		karmaConfig.appPath = projectData.getAppDirectoryRelativePath();
 		karmaConfig.platform = platform.toLowerCase();
 		this.$logger.debug(JSON.stringify(karmaConfig, null, 4));
 
diff --git a/resources/test/karma.conf.js b/resources/test/karma.conf.js
index e646ebb976..3b96bbbc9f 100644
--- a/resources/test/karma.conf.js
+++ b/resources/test/karma.conf.js
@@ -99,6 +99,7 @@ function setWebpack(config, options) {
     const env = {};
     env[config.platform] = true;
     env.sourceMap = config.debugBrk;
+    env.appPath = config.appPath;
     options.webpack = require('./webpack.config')(env);
     delete options.webpack.entry;
     delete options.webpack.output.libraryTarget;