diff --git a/dev-ruby/http-cookie/http-cookie-1.0.5.ebuild b/dev-ruby/http-cookie/http-cookie-1.0.5.ebuild
index 596d9e4f0a092d..c8c392057da53a 100644
--- a/dev-ruby/http-cookie/http-cookie-1.0.5.ebuild
+++ b/dev-ruby/http-cookie/http-cookie-1.0.5.ebuild
@@ -16,6 +16,7 @@ SLOT="0"
 KEYWORDS="amd64 arm arm64 ~hppa ~loong ppc ppc64 ~riscv ~s390 sparc x86"
 IUSE=""
 
+# See https://github.com/sparklemotion/http-cookie/issues/16 for dropping domain_name
 ruby_add_rdepend ">=dev-ruby/domain_name-0.5:0"
 
 all_ruby_prepare() {