diff --git a/test/cli/more-projects_test.py b/test/cli/more-projects_test.py
index a4c629c67423..00f9d73059e1 100644
--- a/test/cli/more-projects_test.py
+++ b/test/cli/more-projects_test.py
@@ -640,6 +640,7 @@ def test_json_file_ignore_2(tmpdir):
 
 
 def test_project_missing_files():
+    filename = os.path.join('invalid-project', 'main.c')
     ret, _, stderr = cppcheck(['--template=cppcheck1', '--project=' + os.path.join('invalid-project', 'invalid-project.vcxproj')])
     assert ret == 0
-    assert stderr == '[invalid-project/main.c:0]: (error) File invalid-project/main.c does not exists. Skipping file.\n'
\ No newline at end of file
+    assert stderr == '[{}:0]: (error) File {} does not exists. Skipping file.\n'.format(filename, filename)
\ No newline at end of file