diff --git a/manifest b/manifest
index d3f3f34..432177d 100644
--- a/manifest
+++ b/manifest
@@ -35,7 +35,12 @@ module.exports = {
             label: "Username",
             type: "string",
             default: defaultConfig.username,
-            icon: "MdPerson"
+            icon: "MdPerson",
+            string_trim: true,
+            ui_component_props: {
+                maxLength: 16,
+                showCount: true
+            }
         },
         assigned_memory: {
             label: "Assigned Memory",