diff --git a/Cython.spec b/Cython.spec
index 9b54489..c0c477b 100644
--- a/Cython.spec
+++ b/Cython.spec
@@ -90,6 +90,7 @@ Provides:       bundled(python3dist(tempita))
 %if %{with tests}
 %check
 # run.pstats_profile_test* fails on Python 3.12
+#   https://github.com/cython/cython/issues/5470
 %{python3} runtests.py -vv --no-pyregr %{?_smp_mflags} \
   --exclude 'run.pstats_profile_test*' \
   %ifarch %{ix86}