diff --git a/test/unit/browser/index.js b/test/unit/browser/index.js
index a2640613c6e..ba30a81e7b5 100644
--- a/test/unit/browser/index.js
+++ b/test/unit/browser/index.js
@@ -45,7 +45,7 @@ const withReporter = (function () {
 				new MochaJUnitReporter(runner, {
 					reporterOptions: {
 						testsuitesTitle: `${argv.tfs} ${process.platform}`,
-						mochaFile: process.env.BUILD_ARTIFACTSTAGINGDIRECTORY ? path.join(process.env.BUILD_ARTIFACTSTAGINGDIRECTORY, `test-results/${process.platform}-${browserType}-${argv.tfs.toLowerCase().replace(/[^\w]/g, '-')}-results.xml`) : undefined
+						mochaFile: process.env.BUILD_ARTIFACTSTAGINGDIRECTORY ? path.join(process.env.BUILD_ARTIFACTSTAGINGDIRECTORY, `test-results/${process.platform}-${process.arch}-${browserType}-${argv.tfs.toLowerCase().replace(/[^\w]/g, '-')}-results.xml`) : undefined
 					}
 				});
 			}
diff --git a/test/unit/electron/index.js b/test/unit/electron/index.js
index 440d8812b8f..6685ff8f713 100644
--- a/test/unit/electron/index.js
+++ b/test/unit/electron/index.js
@@ -143,7 +143,7 @@ app.on('ready', () => {
 		new MochaJUnitReporter(runner, {
 			reporterOptions: {
 				testsuitesTitle: `${argv.tfs} ${process.platform}`,
-				mochaFile: process.env.BUILD_ARTIFACTSTAGINGDIRECTORY ? path.join(process.env.BUILD_ARTIFACTSTAGINGDIRECTORY, `test-results/${process.platform}-${argv.tfs.toLowerCase().replace(/[^\w]/g, '-')}-results.xml`) : undefined
+				mochaFile: process.env.BUILD_ARTIFACTSTAGINGDIRECTORY ? path.join(process.env.BUILD_ARTIFACTSTAGINGDIRECTORY, `test-results/${process.platform}-${process.arch}-${argv.tfs.toLowerCase().replace(/[^\w]/g, '-')}-results.xml`) : undefined
 			}
 		});
 	} else {