diff --git a/python-pendulum.spec b/python-pendulum.spec
index 9105be4..254433c 100644
--- a/python-pendulum.spec
+++ b/python-pendulum.spec
@@ -32,6 +32,7 @@ BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module python-dateutil >= 2.6}
 BuildRequires:  %{python_module pytz >= 2022.1}
+# gh#python-pendulum/pendulum#844
 BuildRequires:  %{python_module time-machine >= 2.16.0}
 BuildRequires:  %{python_module tzdata}
 BuildRequires:  cargo-packaging