diff --git a/dm/dmtree/landevice.c b/dm/dmtree/landevice.c
index 03c5690..7704467 100644
--- a/dm/dmtree/landevice.c
+++ b/dm/dmtree/landevice.c
@@ -2940,8 +2940,10 @@ inline int get_landevice_lanhostconfigmanagement_ipinterface (struct dmctx *ctx,
 {
 	//ctx->args = (void *)args; //TO CHECK 
 	struct ldipargs *ipargs = (struct ldipargs *)(ctx->args);
+	char linker[32] = "linker_interface:";
+	strcat(linker, section_name(ipargs->ldipsection));
 	
-	DMOBJECT(DMROOT"LANDevice.%s.LANHostConfigManagement.IPInterface.%s.", ctx, "0", 1, NULL, NULL, section_name(ipargs->ldipsection), idev, ilan);//TO CHECK "linker_interface:$nlan"
+	DMOBJECT(DMROOT"LANDevice.%s.LANHostConfigManagement.IPInterface.%s.", ctx, "0", 1, NULL, NULL, linker, idev, ilan);
 	DMPARAM("Enable", ctx, "1", get_interface_enable_ubus, set_interface_enable_ubus, "xsd:boolean", 0, 0, UNDEF, NULL);
 	DMPARAM("X_BROADCOM_COM_FirewallEnabled", ctx, "1", get_interface_firewall_enabled, set_interface_firewall_enabled, NULL, 0, 0, UNDEF, NULL);
 	DMPARAM("IPInterfaceIPAddress", ctx, "1", get_interface_ipaddress, set_interface_ipaddress, NULL, 0, 0, UNDEF, NULL);
diff --git a/dm/dmtree/wandevice.c b/dm/dmtree/wandevice.c
index f0fb6f8..6b58131 100644
--- a/dm/dmtree/wandevice.c
+++ b/dm/dmtree/wandevice.c
@@ -1173,9 +1173,9 @@ int get_wandevice_wanprotoclconnection_parameters(struct dmctx *ctx, char *idev,
 	bool notif_b = true;
 	bool forced_inform_eip = 0;
 	char *forced_notify= "";
-	char *linker;
+	char linker[32] = "linker_interface:";
 	char *lan_name = section_name(wandcprotoargs->wancprotosection);
-	dmastrcat(&linker, "linker_interface:", lan_name);
+	strcat(linker, lan_name);
 	if (strcmp(lan_name, default_wan) == 0) {
 		forced_inform_eip = 1;
 		forced_notify = "2"; //TODO fix that and should be int and not char
@@ -1205,7 +1205,6 @@ int get_wandevice_wanprotoclconnection_parameters(struct dmctx *ctx, char *idev,
 		DMPARAM("Username", ctx, "1", get_wan_device_ppp_username, set_wan_device_username, NULL, 0, 0, UNDEF, NULL);
 		DMPARAM("Password", ctx, "1", get_empty, set_wan_device_password, NULL, 0, 0, UNDEF, NULL);
 	}
-	dmfree(linker);
 	return 0;
 }