diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index a2603f095e..bd2ca53f1d 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -2324,6 +2324,7 @@ void virDomainFSDefFree(virDomainFSDefPtr def)
     VIR_FREE(def->dst);
     virDomainDeviceInfoClear(&def->info);
     VIR_FREE(def->virtio);
+    virObjectUnref(def->privateData);
 
     VIR_FREE(def);
 }