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-rw-r--r--src/resolve/resolved-dns-cache.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/resolve/resolved-dns-cache.c b/src/resolve/resolved-dns-cache.c
index f7091f07bf..40fb6c3984 100644
--- a/src/resolve/resolved-dns-cache.c
+++ b/src/resolve/resolved-dns-cache.c
@@ -320,6 +320,8 @@ static int dns_cache_put_negative(DnsCache *c, DnsResourceKey *key, int rcode, u
return 0;
if (key->type == DNS_TYPE_ANY)
return 0;
+ if (soa_ttl <= 0)
+ return 0;
if (!IN_SET(rcode, DNS_RCODE_SUCCESS, DNS_RCODE_NXDOMAIN))
return 0;