diff --git a/test/integration-test-wrapper.py b/test/integration-test-wrapper.py
index eb7b5b3fc5..f3c7fe5b85 100755
--- a/test/integration-test-wrapper.py
+++ b/test/integration-test-wrapper.py
@@ -76,6 +76,7 @@ def main():
 
     cmd = [
         'mkosi',
+        '--debug',
         '--directory', os.fspath(args.meson_source_dir),
         '--output-dir', os.fspath(args.meson_build_dir / 'mkosi.output'),
         '--extra-search-path', os.fspath(args.meson_build_dir),