diff --git a/src/nwfilter/nwfilter_gentech_driver.c b/src/nwfilter/nwfilter_gentech_driver.c
index 41f270bb7c..0c12b54b80 100644
--- a/src/nwfilter/nwfilter_gentech_driver.c
+++ b/src/nwfilter/nwfilter_gentech_driver.c
@@ -203,12 +203,12 @@ virNWFilterInstReset(virNWFilterInst *inst)
 
     for (i = 0; i < inst->nfilters; i++)
         virNWFilterObjUnlock(inst->filters[i]);
-    g_free(inst->filters);
+    g_clear_pointer(inst->filters, g_free);
     inst->nfilters = 0;
 
     for (i = 0; i < inst->nrules; i++)
         virNWFilterRuleInstFree(inst->rules[i]);
-    g_free(inst->rules);
+    g_clear_pointer(inst->rules, g_free);
     inst->nrules = 0;
 }