diff --git a/src/vbox/vbox_tmpl.c b/src/vbox/vbox_tmpl.c
index 68dffd2bd75269eba96546189e692b747734c624..d1a701e6184fc4a3b24cc7f4780f7d5de04971ec 100644
--- a/src/vbox/vbox_tmpl.c
+++ b/src/vbox/vbox_tmpl.c
@@ -6183,6 +6183,7 @@ static char *vboxNetworkDumpXML(virNetworkPtr network, int flags ATTRIBUTE_UNUSE
     ret = virNetworkDefFormat(def);
 
 cleanup:
+    virNetworkDefFree(def);
     VIR_FREE(networkNameUtf8);
     return ret;
 }