diff --git a/tests/callback_plugins/dump_packages.py b/tests/callback_plugins/dump_packages.py
index 89a343d..433fe54 100644
--- a/tests/callback_plugins/dump_packages.py
+++ b/tests/callback_plugins/dump_packages.py
@@ -58,5 +58,7 @@ def v2_runner_on_ok(self, result):
                         packages.add(ii)
                 else:
                     packages.add(pkgs)
-
+            # tell python black that this line is ok
+            # fmt: off
             self._display.display("lsrpackages: " + " ".join(sorted(list(packages))))
+            # fmt: on