diff --git a/net-dns/check_dns_sync/check_dns_sync-9999.ebuild b/net-dns/check_dns_sync/check_dns_sync-9999.ebuild
index 7f728e0..0b18c4a 100644
--- a/net-dns/check_dns_sync/check_dns_sync-9999.ebuild
+++ b/net-dns/check_dns_sync/check_dns_sync-9999.ebuild
@@ -19,6 +19,7 @@ DEPEND=""
 RDEPEND="
 	${DEPEND}
 	dev-python/nagiosplugin[${PYTHON_USEDEP}]
+	net-dns/bind-tools
 "
 BDEPEND=""