diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c
index d0860d874e..45ddee2def 100644
--- a/src/conf/network_conf.c
+++ b/src/conf/network_conf.c
@@ -945,6 +945,7 @@ virNetworkDNSDefFormat(virBufferPtr buf,
                                                def->hosts[ii].names[j]);
 
             virBufferAsprintf(buf, "    </host>\n");
+            VIR_FREE(ip);
         }
     }