diff --git a/pypy3.9.spec b/pypy3.9.spec
index cb53228..1e56c79 100644
--- a/pypy3.9.spec
+++ b/pypy3.9.spec
@@ -773,6 +773,7 @@ CheckPyPy pypy%{pyversion}-c
 
 
 %files test
+# Keep this synced with %%excluded %%files in libs
 %{pypylibdir}/_ctypes_test.*
 %{pypylibdir}/_pypy_testcapi.*
 %{pypylibdir}/_test*
@@ -794,6 +795,8 @@ CheckPyPy pypy%{pyversion}-c
 %if %{with main_pypy3}
 %{_rpmconfigdir}/macros.d/macros.pypy3
 %endif
+
+# Keep this synced with %%excluded %%files in libs
 %{pypylibdir}/cffi/*.h
 %{pypylibdir}/hpy/devel/