diff --git a/packages/stark-rbac/karma.conf.ci.js b/packages/stark-rbac/karma.conf.ci.js
index 3701923292..9d3cac497e 100644
--- a/packages/stark-rbac/karma.conf.ci.js
+++ b/packages/stark-rbac/karma.conf.ci.js
@@ -10,12 +10,17 @@ const karmaTypescriptFiles = require("./karma.conf").karmaTypescriptFiles;
 // start customizing the KarmaCI configuration from stark-testing
 const starkRBACSpecificConfiguration = {
 	...defaultKarmaCIConfig,
-	// change the module resolution for the KarmaTypescript bundler
+	// change the path of the report so that Coveralls takes the right path to the source files
+	coverageIstanbulReporter: { ...defaultKarmaCIConfig.coverageIstanbulReporter, dir: helpers.root("reports/coverage/packages") },
+	// add missing files due to "@nationalbankbelgium/stark-rbac" imports used in mock files of the testing sub-package
+	files: [...defaultKarmaCIConfig.files, ...karmaTypescriptFiles],
 	karmaTypescriptConfig: {
 		...defaultKarmaCIConfig.karmaTypescriptConfig,
 		bundlerOptions: {
 			...defaultKarmaCIConfig.karmaTypescriptConfig.bundlerOptions,
+			// change the module resolution for the KarmaTypescript bundler
 			...karmaTypescriptBundlerAliasResolution,
+			// Overwrite the karmaTypescriptConfig to pass the correct preset to karma-typescript-es6-transform
 			transforms: [
 				require("../stark-testing/node_modules/karma-typescript-angular2-transform"),
 				require("../stark-testing/node_modules/karma-typescript-es6-transform")({
@@ -23,11 +28,7 @@ const starkRBACSpecificConfiguration = {
 				})
 			]
 		}
-	},
-	// change the path of the report so that Coveralls takes the right path to the source files
-	coverageIstanbulReporter: { ...defaultKarmaCIConfig.coverageIstanbulReporter, dir: helpers.root("reports/coverage/packages") },
-	// add missing files due to "@nationalbankbelgium/stark-rbac" imports used in mock files of the testing sub-package
-	files: [...defaultKarmaCIConfig.files, ...karmaTypescriptFiles]
+	}
 };
 
 // export the configuration function that karma expects and simply return the stark configuration
diff --git a/packages/stark-rbac/karma.conf.js b/packages/stark-rbac/karma.conf.js
index 630f0cc7ba..738b24b69d 100644
--- a/packages/stark-rbac/karma.conf.js
+++ b/packages/stark-rbac/karma.conf.js
@@ -42,12 +42,15 @@ const karmaTypescriptBundlerAliasResolution = {
 // start customizing the KarmaCI configuration from stark-testing
 const starkRBACSpecificConfiguration = {
 	...defaultKarmaConfig,
-	// change the module resolution for the KarmaTypescript bundler
+	// add missing files due to "@nationalbankbelgium/stark-rbac" imports used in mock files of the testing sub-package
+	files: [...defaultKarmaConfig.files, ...karmaTypescriptFiles],
 	karmaTypescriptConfig: {
 		...defaultKarmaConfig.karmaTypescriptConfig,
 		bundlerOptions: {
 			...defaultKarmaConfig.karmaTypescriptConfig.bundlerOptions,
+			// change the module resolution for the KarmaTypescript bundler
 			...karmaTypescriptBundlerAliasResolution,
+			// Overwrite the karmaTypescriptConfig to pass the correct preset to karma-typescript-es6-transform
 			transforms: [
 				require("../stark-testing/node_modules/karma-typescript-angular2-transform"),
 				require("../stark-testing/node_modules/karma-typescript-es6-transform")({
@@ -55,9 +58,7 @@ const starkRBACSpecificConfiguration = {
 				})
 			]
 		}
-	},
-	// add missing files due to "@nationalbankbelgium/stark-rbac" imports used in mock files of the testing sub-package
-	files: [...defaultKarmaConfig.files, ...karmaTypescriptFiles]
+	}
 };
 
 // export the configuration function that karma expects and simply return the stark configuration
diff --git a/packages/stark-ui/karma.conf.ci.js b/packages/stark-ui/karma.conf.ci.js
index e4be9d8a5d..65eda4585c 100644
--- a/packages/stark-ui/karma.conf.ci.js
+++ b/packages/stark-ui/karma.conf.ci.js
@@ -8,15 +8,21 @@ const karmaTypescriptBundlerAlias = require("./karma.conf").karmaTypescriptBundl
 const karmaTypescriptFiles = require("./karma.conf").karmaTypescriptFiles;
 
 // start customizing the KarmaCI configuration from stark-testing
-const starkUiSpecificConfiguration = Object.assign({}, defaultKarmaCIConfig, {
-	// change the module resolution for the KarmaTypescript bundler
+const starkUiSpecificConfiguration = {
+	...defaultKarmaCIConfig,
+	// change the path of the report so that Coveralls takes the right path to the source files
+	coverageIstanbulReporter: { ...defaultKarmaCIConfig.coverageIstanbulReporter, dir: helpers.root("reports/coverage/packages") },
+	// add missing files due to "@nationalbankbelgium/stark-ui" imports used in mock files of the testing sub-package
+	files: [...defaultKarmaCIConfig.files, ...karmaTypescriptFiles],
 	karmaTypescriptConfig: {
 		...defaultKarmaCIConfig.karmaTypescriptConfig,
 		bundlerOptions: {
 			...defaultKarmaCIConfig.karmaTypescriptConfig.bundlerOptions,
+			// change the module resolution for the KarmaTypescript bundler
 			resolve: {
 				alias: karmaTypescriptBundlerAlias
 			},
+			// Overwrite the karmaTypescriptConfig to pass the correct preset to karma-typescript-es6-transform
 			transforms: [
 				require("../stark-testing/node_modules/karma-typescript-angular2-transform"),
 				require("../stark-testing/node_modules/karma-typescript-es6-transform")({
@@ -24,10 +30,8 @@ const starkUiSpecificConfiguration = Object.assign({}, defaultKarmaCIConfig, {
 				})
 			]
 		}
-	},
-	// add missing files due to "@nationalbankbelgium/stark-ui" imports used in mock files of the testing sub-package
-	files: [...defaultKarmaCIConfig.files, ...karmaTypescriptFiles]
-});
+	}
+};
 
 // export the configuration function that karma expects and simply return the stark configuration
 module.exports = config => {
diff --git a/packages/stark-ui/karma.conf.js b/packages/stark-ui/karma.conf.js
index fe81ae548d..b63ed89584 100644
--- a/packages/stark-ui/karma.conf.js
+++ b/packages/stark-ui/karma.conf.js
@@ -43,15 +43,19 @@ const karmaTypescriptBundlerAlias = {
 };
 
 // start customizing the KarmaCI configuration from stark-testing
-const starkUiSpecificConfiguration = Object.assign({}, defaultKarmaConfig, {
-	// change the module resolution for the KarmaTypescript bundler
+const starkUiSpecificConfiguration = {
+	...defaultKarmaConfig,
+	// add missing files due to "@nationalbankbelgium/stark-ui" imports used in mock files of the testing sub-package
+	files: [...defaultKarmaConfig.files, ...karmaTypescriptFiles],
 	karmaTypescriptConfig: {
 		...defaultKarmaConfig.karmaTypescriptConfig,
 		bundlerOptions: {
 			...defaultKarmaConfig.karmaTypescriptConfig.bundlerOptions,
+			// change the module resolution for the KarmaTypescript bundler
 			resolve: {
 				alias: karmaTypescriptBundlerAlias
 			},
+			// Overwrite the karmaTypescriptConfig to pass the correct preset to karma-typescript-es6-transform
 			transforms: [
 				require("../stark-testing/node_modules/karma-typescript-angular2-transform"),
 				require("../stark-testing/node_modules/karma-typescript-es6-transform")({
@@ -59,10 +63,8 @@ const starkUiSpecificConfiguration = Object.assign({}, defaultKarmaConfig, {
 				})
 			]
 		}
-	},
-	// add missing files due to "@nationalbankbelgium/stark-ui" imports used in mock files of the testing sub-package
-	files: [...defaultKarmaConfig.files, ...karmaTypescriptFiles]
-});
+	}
+};
 
 // export the configuration function that karma expects and simply return the stark configuration
 module.exports = {