diff --git a/platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/StandaloneTests.java b/platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/StandaloneTests.java
index 02c8f1c56306..3d71f1b71406 100644
--- a/platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/StandaloneTests.java
+++ b/platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/StandaloneTests.java
@@ -111,7 +111,7 @@ void testWithJarredTestClasses() {
 		var jar = root.resolve(Helper.createJarPath("junit-platform-console-standalone"));
 		var path = new ArrayList<String>();
 		// path.add("bin"); // "exploded" test classes are found, see also test() above
-		path.add(Request.WORKSPACE.resolve("standalone/jar/tests.jar").toString());
+		path.add(Request.WORKSPACE.resolve("standalone/jar/tests.jar").toAbsolutePath().toString());
 		path.add(jar.toString());
 		var result = Request.builder() //
 				.setTool(new Java()) //