diff --git a/lib/dns/geoip.c b/lib/dns/geoip.c
index 140fe3b65e..6e0ba71675 100644
--- a/lib/dns/geoip.c
+++ b/lib/dns/geoip.c
@@ -810,7 +810,7 @@ dns_geoip_match(const isc_netaddr_t *reqaddr,
 
 	default:
 		INSIST(0);
-		ISC_UNREACHABLE()
+		ISC_UNREACHABLE();
 	}
 
 	return (false);
diff --git a/lib/dns/rpz.c b/lib/dns/rpz.c
index 0d75ff0c66..6fcd5dca17 100644
--- a/lib/dns/rpz.c
+++ b/lib/dns/rpz.c
@@ -334,7 +334,7 @@ make_addr_set(dns_rpz_addr_zbits_t *tgt_set, dns_rpz_zbits_t zbits,
 		break;
 	default:
 		INSIST(0);
-		break;
+		ISC_UNREACHABLE();
 	}
 }
 
@@ -353,7 +353,7 @@ make_nm_set(dns_rpz_nm_zbits_t *tgt_set,
 		break;
 	default:
 		INSIST(0);
-		break;
+		ISC_UNREACHABLE();
 	}
 }
 
@@ -2564,7 +2564,7 @@ dns_rpz_find_ip(dns_rpz_zones_t *rpzs, dns_rpz_type_t rpz_type,
 		break;
 	default:
 		INSIST(0);
-		break;
+		ISC_UNREACHABLE();
 	}
 	result = ip2name(&found->ip, found->prefix, dns_rootname, ip_name);
 	RWUNLOCK(&rpzs->search_lock, isc_rwlocktype_read);