diff --git a/src/test/unittest/adapter/factory.unit.test.ts b/src/test/unittest/adapter/factory.unit.test.ts
index 81e7fa7..62adf5c 100644
--- a/src/test/unittest/adapter/factory.unit.test.ts
+++ b/src/test/unittest/adapter/factory.unit.test.ts
@@ -292,9 +292,9 @@ suite('Debugging - Adapter Factory', () => {
         assert.deepStrictEqual(descriptor, debugExecutable);
     });
     test('Add quotes to interpreter path with spaces', async () => {
-        const customAdapterPath = 'custom/debug/adapter/customAdapterPath';
+        const customAdapterPath = path.join('custom', 'debug', 'adapter', 'customAdapterPath');
         const session = createSession({ debugAdapterPath: customAdapterPath });
-        const interpreterPathSpaces = '/path/to/python interpreter with spaces';
+        const interpreterPathSpaces = path.join('/path', 'to', 'python interpreter with spaces');
         const interpreterPathSpacesQuoted = `"${interpreterPathSpaces}"`;
         const debugExecutable = new DebugAdapterExecutable(interpreterPathSpacesQuoted, [customAdapterPath]);