diff --git a/src/guifier/classes/Data.ts b/src/guifier/classes/Data.ts
index d5c406b..7b912aa 100644
--- a/src/guifier/classes/Data.ts
+++ b/src/guifier/classes/Data.ts
@@ -1,6 +1,6 @@
 import clone from 'clone'
 
-import type { Property, ParametersInternal } from '../types'
+import type { Property, Parameters } from '../types'
 
 import { XMLParser, XMLBuilder } from 'fast-xml-parser'
 import * as toml from 'toml'
@@ -18,10 +18,10 @@ import xmlFormat from 'xml-formatter'
 export class Data {
     public rawData: any
     public parsedData: Property = defaultProperty
-    public params: ParametersInternal
+    public params: Parameters
     private readonly path: Array<number | string> = []
 
-    constructor (data: string, dataType: DataType, params: ParametersInternal) {
+    constructor (data: string, dataType: DataType, params: Parameters) {
         // add guifier params
         this.params = params
 
@@ -29,7 +29,7 @@ export class Data {
         this.rawData = this.deserializeData(data, dataType)
 
         // adding meta data (private properties) to the properties that dont have them
-        this.parsedData = this.addMetaDataRecursively(this.rawData, this.params.rootContainerName)
+        this.parsedData = this.addMetaDataRecursively(this.rawData, 'root')
 
         // normalizing _rules array in the property meta data
         this.normalizingRules()
diff --git a/src/guifier/fields/containers/Container/Container.ts b/src/guifier/fields/containers/Container/Container.ts
index 80eb6a4..f88295f 100644
--- a/src/guifier/fields/containers/Container/Container.ts
+++ b/src/guifier/fields/containers/Container/Container.ts
@@ -150,7 +150,7 @@ export abstract class Container extends Field {
         const objectName = this.property._key
         const guifierContainerHeaderKeyName = document.createElement('div')
         guifierContainerHeaderKeyName.classList.add('guifierContainerHeaderKeyName')
-        guifierContainerHeaderKeyName.innerHTML = `${objectName}`
+        guifierContainerHeaderKeyName.innerHTML = this.property._path.length === 1 ? this.params.rootContainerName : `${objectName}`
         guifierContainerHeader.append(guifierContainerHeaderKeyName)
 
         // todo: add this part to a function
diff --git a/src/guifier/types.ts b/src/guifier/types.ts
index d267f4c..5f9f947 100644
--- a/src/guifier/types.ts
+++ b/src/guifier/types.ts
@@ -14,10 +14,10 @@ export const ParameterSchema = z.object({
     data: z.any(),
     dataType: z.string(),
     rootContainerName: z.string().default('root'),
-    withoutContainer: z.boolean().optional().default(false),
-    flipBackgroundColors: z.boolean().optional().default(false),
-    expandFieldsToFullWidth: z.boolean().optional().default(false),
-    readOnlyMode: z.boolean().optional().default(false),
+    withoutContainer: z.boolean().default(false),
+    flipBackgroundColors: z.boolean().default(false),
+    expandFieldsToFullWidth: z.boolean().default(false),
+    readOnlyMode: z.boolean().default(false),
     onChange: z.function().optional(),
     xmlRootName: z.any()
 })