diff --git a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/IVSHMEM_REGION.vue b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/IVSHMEM_REGION.vue
index 582712c6a..d82e841a3 100644
--- a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/IVSHMEM_REGION.vue
+++ b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/IVSHMEM_REGION.vue
@@ -155,7 +155,7 @@ export default {
   },
   methods: {
     validation(value) {
-      return value.length != 0;
+      return (value != null) && (value.length != 0);
     },
     addSharedVM(vms, index) {
       // add new item after current item
diff --git a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/VUART.vue b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/VUART.vue
index 4ce10f741..7311cfa2f 100644
--- a/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/VUART.vue
+++ b/misc/config_tools/configurator/packages/configurator/src/pages/Config/ConfigForm/CustomWidget/VUART.vue
@@ -153,7 +153,7 @@ export default {
   },
   methods: {
     validation(value) {
-      return value.length != 0;
+      return (value != null) && (value.length != 0);
     },
     removeVUARTConnection(index) {
       this.defaultVal.splice(index, 1);