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-rw-r--r--services/cache/rrset.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/services/cache/rrset.c b/services/cache/rrset.c
index 2c8552953871..2f6a1b506712 100644
--- a/services/cache/rrset.c
+++ b/services/cache/rrset.c
@@ -190,6 +190,7 @@ rrset_cache_update(struct rrset_cache* r, struct rrset_ref* ref,
uint16_t rrset_type = ntohs(k->rk.type);
int equal = 0;
log_assert(ref->id != 0 && k->id != 0);
+ log_assert(k->rk.dname != NULL);
/* looks up item with a readlock - no editing! */
if((e=slabhash_lookup(&r->table, h, k, 0)) != 0) {
/* return id and key as they will be used in the cache