diff --git a/rust-rayon-core.spec b/rust-rayon-core.spec
index bb0b66e..4430a23 100644
--- a/rust-rayon-core.spec
+++ b/rust-rayon-core.spec
@@ -1,5 +1,6 @@
 # Generated by rust2rpm
 # Some tests don't work with optimized builds
+# https://github.com/rayon-rs/rayon/issues/585
 %bcond_with check
 %global debug_package %{nil}