diff --git a/components/lib/accordiontab/AccordionTab.d.ts b/components/lib/accordiontab/AccordionTab.d.ts
index 6070b4c4c..992b8e4ef 100755
--- a/components/lib/accordiontab/AccordionTab.d.ts
+++ b/components/lib/accordiontab/AccordionTab.d.ts
@@ -37,19 +37,19 @@ export interface AccordionTabPassThroughOptions {
     /**
      * Uses to pass attributes to the headeraction's DOM element.
      */
-    headeraction?: AccordionTabPassThroughOptionType;
+    headerAction?: AccordionTabPassThroughOptionType;
     /**
      * Uses to pass attributes to the headericon's DOM element.
      */
-    headericon?: AccordionTabPassThroughOptionType;
+    headerIcon?: AccordionTabPassThroughOptionType;
     /**
      * Uses to pass attributes to the headertitle's DOM element.
      */
-    headertitle?: AccordionTabPassThroughOptionType;
+    headerTitle?: AccordionTabPassThroughOptionType;
     /**
      * Uses to pass attributes to the toggleablecontent's DOM element.
      */
-    toggleablecontent?: AccordionTabPassThroughOptionType;
+    toggleableContent?: AccordionTabPassThroughOptionType;
     /**
      * Uses to pass attributes to the content's DOM element.
      */
diff --git a/components/lib/fieldset/Fieldset.d.ts b/components/lib/fieldset/Fieldset.d.ts
index 61f3f4bb5..735acd792 100755
--- a/components/lib/fieldset/Fieldset.d.ts
+++ b/components/lib/fieldset/Fieldset.d.ts
@@ -55,15 +55,15 @@ export interface FieldsetPassThroughOptions {
     /**
      * Uses to pass attributes to the toggler icon's DOM element.
      */
-    togglericon?: FieldsetPassThroughOptionType;
+    togglerIcon?: FieldsetPassThroughOptionType;
     /**
      * Uses to pass attributes to the legend title's DOM element.
      */
-    legendtitle?: FieldsetPassThroughOptionType;
+    legendTitle?: FieldsetPassThroughOptionType;
     /**
      * Uses to pass attributes to the toggleable content's DOM element.
      */
-    toggleablecontent?: FieldsetPassThroughOptionType;
+    toggleableContent?: FieldsetPassThroughOptionType;
     /**
      * Uses to pass attributes to the content's DOM element.
      */
diff --git a/components/lib/panel/Panel.d.ts b/components/lib/panel/Panel.d.ts
index 1b1406d46..54cad4b84 100755
--- a/components/lib/panel/Panel.d.ts
+++ b/components/lib/panel/Panel.d.ts
@@ -63,11 +63,11 @@ export interface PanelPassThroughOptions {
     /**
      * Uses to pass attributes to the togglericon's DOM element.
      */
-    togglericon?: PanelPassThroughOptionType;
+    togglerIcon?: PanelPassThroughOptionType;
     /**
      * Uses to pass attributes to the toggleablecontent's DOM element.
      */
-    toggleablecontent?: PanelPassThroughOptionType;
+    toggleableContent?: PanelPassThroughOptionType;
     /**
      * Uses to pass attributes to the content's DOM element.
      */
diff --git a/components/lib/scrollpanel/ScrollPanel.d.ts b/components/lib/scrollpanel/ScrollPanel.d.ts
index 250c433b2..c41848e15 100644
--- a/components/lib/scrollpanel/ScrollPanel.d.ts
+++ b/components/lib/scrollpanel/ScrollPanel.d.ts
@@ -40,11 +40,11 @@ export interface ScrollPanelPassThroughOptions {
     /**
      * Uses to pass attributes to the horizontal panel's DOM element.
      */
-    barx?: ScrollPanelPassThroughOptionType;
+    barX?: ScrollPanelPassThroughOptionType;
     /**
      * Uses to pass attributes to the vertical panel's DOM element.
      */
-    bary?: ScrollPanelPassThroughOptionType;
+    barY?: ScrollPanelPassThroughOptionType;
 }
 
 /**
diff --git a/components/lib/splitter/Splitter.d.ts b/components/lib/splitter/Splitter.d.ts
index efdaf4743..e526bef15 100644
--- a/components/lib/splitter/Splitter.d.ts
+++ b/components/lib/splitter/Splitter.d.ts
@@ -66,7 +66,7 @@ export interface SplitterPassThroughOptions {
     /**
      * Uses to pass attributes to the gutter handler's DOM element.
      */
-    gutterhandler?: SplitterPassThroughOptionType;
+    gutterHandler?: SplitterPassThroughOptionType;
 }
 
 /**
diff --git a/components/lib/tabpanel/TabPanel.d.ts b/components/lib/tabpanel/TabPanel.d.ts
index 30f09c699..2bb2b7927 100755
--- a/components/lib/tabpanel/TabPanel.d.ts
+++ b/components/lib/tabpanel/TabPanel.d.ts
@@ -37,11 +37,11 @@ export interface TabPanelPassThroughOptions {
     /**
      * Uses to pass attributes to the header action's DOM element.
      */
-    headeraction?: TabPanelPassThroughOptionType;
+    headerAction?: TabPanelPassThroughOptionType;
     /**
      * Uses to pass attributes to the title's DOM element.
      */
-    headertitle?: TabPanelPassThroughOptionType;
+    headerTitle?: TabPanelPassThroughOptionType;
     /**
      * Uses to pass attributes to the list's DOM element.
      */
diff --git a/components/lib/tabview/TabView.d.ts b/components/lib/tabview/TabView.d.ts
index 45ace0333..4080b7cf8 100755
--- a/components/lib/tabview/TabView.d.ts
+++ b/components/lib/tabview/TabView.d.ts
@@ -46,11 +46,11 @@ export interface TabViewPassThroughOptions {
     /**
      * Uses to pass attributes to the nav container's DOM element.
      */
-    navcontainer?: TabViewPassThroughOptionType;
+    navContainer?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the nav content's DOM element.
      */
-    navcontent?: TabViewPassThroughOptionType;
+    navContent?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the list's DOM element.
      */
@@ -62,23 +62,23 @@ export interface TabViewPassThroughOptions {
     /**
      * Uses to pass attributes to the previous button's DOM element.
      */
-    prevbutton?: TabViewPassThroughOptionType;
+    previousButton?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the previous button icon's DOM element.
      */
-    previcon?: TabViewPassThroughOptionType;
+    previousIcon?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the nex button's DOM element.
      */
-    nextbutton?: TabViewPassThroughOptionType;
+    nextButton?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the next button icon's DOM element.
      */
-    nexticon?: TabViewPassThroughOptionType;
+    nextIcon?: TabViewPassThroughOptionType;
     /**
      * Uses to pass attributes to the panel's DOM element.
      */
-    panelcontainer?: TabViewPassThroughOptionType;
+    panelContainer?: TabViewPassThroughOptionType;
 }
 
 /**
diff --git a/components/lib/toolbar/Toolbar.d.ts b/components/lib/toolbar/Toolbar.d.ts
index 3b18445b6..668180840 100755
--- a/components/lib/toolbar/Toolbar.d.ts
+++ b/components/lib/toolbar/Toolbar.d.ts
@@ -29,17 +29,17 @@ export interface ToolbarPassThroughOptions {
      */
     root?: ToolbarPassThroughOptionType;
     /**
-     * Uses to pass attributes to the groupstart's DOM element.
+     * Uses to pass attributes to the start's DOM element.
      */
-    groupStart?: ToolbarPassThroughOptionType;
+    start?: ToolbarPassThroughOptionType;
     /**
-     * Uses to pass attributes to the groupcenter's DOM element.
+     * Uses to pass attributes to the center's DOM element.
      */
-    groupCenter?: ToolbarPassThroughOptionType;
+    center?: ToolbarPassThroughOptionType;
     /**
-     * Uses to pass attributes to the groupright's DOM element.
+     * Uses to pass attributes to the right's DOM element.
      */
-    groupEnd?: ToolbarPassThroughOptionType;
+    end?: ToolbarPassThroughOptionType;
 }
 
 /**
diff --git a/components/lib/toolbar/Toolbar.vue b/components/lib/toolbar/Toolbar.vue
index 3f0b5377c..47a014c3d 100755
--- a/components/lib/toolbar/Toolbar.vue
+++ b/components/lib/toolbar/Toolbar.vue
@@ -1,12 +1,12 @@
 <template>
     <div class="p-toolbar p-component" role="toolbar" :aria-labelledby="ariaLabelledby" v-bind="ptm('root')">
-        <div class="p-toolbar-group-start p-toolbar-group-left" v-bind="ptm('groupstart')">
+        <div class="p-toolbar-group-start p-toolbar-group-left" v-bind="ptm('start')">
             <slot name="start"></slot>
         </div>
-        <div class="p-toolbar-group-center" v-bind="ptm('groupcenter')">
+        <div class="p-toolbar-group-center" v-bind="ptm('center')">
             <slot name="center"></slot>
         </div>
-        <div class="p-toolbar-group-end p-toolbar-group-right" v-bind="ptm('groupend')">
+        <div class="p-toolbar-group-end p-toolbar-group-right" v-bind="ptm('end')">
             <slot name="end"></slot>
         </div>
     </div>