diff --git a/src/nwfilter/nwfilter_learnipaddr.c b/src/nwfilter/nwfilter_learnipaddr.c
index cfd92d9512..5b95f0e613 100644
--- a/src/nwfilter/nwfilter_learnipaddr.c
+++ b/src/nwfilter/nwfilter_learnipaddr.c
@@ -637,6 +637,7 @@ learnIPAddressThread(void *arg)
                                                    req->filterparams);
             VIR_DEBUG("Result from applying firewall rules on "
                       "%s with IP addr %s : %d", req->ifname, inetaddr, ret);
+            VIR_FREE(inetaddr);
         }
     } else {
         if (showError)