diff --git a/src/feature/relay/dns.c b/src/feature/relay/dns.c
index 371c2f5069..701719af95 100644
--- a/src/feature/relay/dns.c
+++ b/src/feature/relay/dns.c
@@ -1386,6 +1386,7 @@ configured_nameserver_address(const size_t idx)
                               NULL) == 0) {
      return tor_addr;
    }
+   tor_free(tor_addr);
  }
 
  return NULL;