diff --git a/lib/dns/rdata/generic/brid_68.c b/lib/dns/rdata/generic/brid_68.c
index 11afb16e33..ac3bbb35ae 100644
--- a/lib/dns/rdata/generic/brid_68.c
+++ b/lib/dns/rdata/generic/brid_68.c
@@ -85,7 +85,7 @@ fromwire_brid(ARGS_FROMWIRE) {
 static isc_result_t
 towire_brid(ARGS_TOWIRE) {
 	REQUIRE(rdata->type == dns_rdatatype_brid);
-	REQUIRE(rdata->length >= 3);
+	REQUIRE(rdata->length > 0);
 
 	UNUSED(cctx);
 
diff --git a/lib/dns/rdata/generic/hhit_67.c b/lib/dns/rdata/generic/hhit_67.c
index 8b51a82ddb..c0b57730e7 100644
--- a/lib/dns/rdata/generic/hhit_67.c
+++ b/lib/dns/rdata/generic/hhit_67.c
@@ -85,7 +85,7 @@ fromwire_hhit(ARGS_FROMWIRE) {
 static isc_result_t
 towire_hhit(ARGS_TOWIRE) {
 	REQUIRE(rdata->type == dns_rdatatype_hhit);
-	REQUIRE(rdata->length >= 3);
+	REQUIRE(rdata->length > 0);
 
 	UNUSED(cctx);