diff --git a/src/conf/netdev_vport_profile_conf.c b/src/conf/netdev_vport_profile_conf.c
index 701e17e07c54de19353f7080999ae06b1c945292..47f51f95923ed44a41888017be29a84003bd3ca4 100644
--- a/src/conf/netdev_vport_profile_conf.c
+++ b/src/conf/netdev_vport_profile_conf.c
@@ -198,6 +198,7 @@ cleanup:
     VIR_FREE(virtPortInstanceID);
     VIR_FREE(virtPortProfileID);
     VIR_FREE(virtPortType);
+    VIR_FREE(virtPortInterfaceID);
 
     return virtPort;