diff --git a/lib/dns/sdlz.c b/lib/dns/sdlz.c
index 5476ef391f..5eea5cb6b9 100644
--- a/lib/dns/sdlz.c
+++ b/lib/dns/sdlz.c
@@ -1852,7 +1852,6 @@ dns_sdlz_putrr(dns_sdlzlookup_t *lookup, const char *type, dns_ttl_t ttl,
 					    mctx, rdatabuf, &lookup->callbacks);
 		if (result != ISC_R_SUCCESS) {
 			isc_buffer_free(&rdatabuf);
-			result = DNS_R_SERVFAIL;
 		}
 		if (size >= 65535) {
 			break;
@@ -1864,6 +1863,7 @@ dns_sdlz_putrr(dns_sdlzlookup_t *lookup, const char *type, dns_ttl_t ttl,
 	} while (result == ISC_R_NOSPACE);
 
 	if (result != ISC_R_SUCCESS) {
+		result = DNS_R_SERVFAIL;
 		goto failure;
 	}