diff --git a/dev-cpp/valijson/valijson-1.0.5.ebuild b/dev-cpp/valijson/valijson-1.0.5.ebuild
index 10e6d497669f2..7afb50af88bb2 100644
--- a/dev-cpp/valijson/valijson-1.0.5.ebuild
+++ b/dev-cpp/valijson/valijson-1.0.5.ebuild
@@ -12,6 +12,9 @@ SRC_URI="https://github.com/tristanpenman/valijson/archive/v${PV}.tar.gz -> ${P}
 LICENSE="BSD-2 Boost-1.0"
 SLOT="0"
 KEYWORDS="~amd64 ~arm64 ~x86"
+# Bundled test dependencies are included as submodules, so not in github
+# autogenerated tarballs. The dependencies are largely packaged, but
+# needs patching to use those.
 RESTRICT="test"
 
 src_install() {