1 files changed, 6 insertions, 4 deletions

diff --git a/openbsd-compat/getrrsetbyname.c b/openbsd-compat/getrrsetbyname.c
index 6c86e02c2..07231d005 100644
--- a/openbsd-compat/getrrsetbyname.c
+++ b/openbsd-compat/getrrsetbyname.c
@@ -303,10 +303,12 @@ getrrsetbyname(const char *hostname, unsigned int rdclass,
         }
 
         /* allocate memory for signatures */
-        rrset->rri_sigs = calloc(rrset->rri_nsigs, sizeof(struct rdatainfo));
-        if (rrset->rri_sigs == NULL) {
-                result = ERRSET_NOMEMORY;
-                goto fail;
+        if (rrset->rri_nsigs > 0) {
+                rrset->rri_sigs = calloc(rrset->rri_nsigs, sizeof(struct rdatainfo));
+                if (rrset->rri_sigs == NULL) {
+                        result = ERRSET_NOMEMORY;
+                        goto fail;
+                }
         }
 
         /* copy answers & signatures */