diff --git a/src/components/autocomplete/AutoComplete.d.ts b/src/components/autocomplete/AutoComplete.d.ts
index 6671b527ae..a6172c7ad0 100755
--- a/src/components/autocomplete/AutoComplete.d.ts
+++ b/src/components/autocomplete/AutoComplete.d.ts
@@ -27,7 +27,7 @@ interface AutoCompleteProps {
     maxlength?: number;
     size?: number;
     appendTo?: any;
-    tabindex?: number;
+    tabIndex?: number;
     autoFocus?: boolean;
     tooltip?: any;
     tooltipOptions?: TooltipOptions;
diff --git a/src/components/autocomplete/AutoComplete.js b/src/components/autocomplete/AutoComplete.js
index 0480206231..3d12dc6952 100644
--- a/src/components/autocomplete/AutoComplete.js
+++ b/src/components/autocomplete/AutoComplete.js
@@ -40,7 +40,7 @@ export class AutoComplete extends Component {
         maxlength: null,
         size: null,
         appendTo: null,
-        tabindex: null,
+        tabIndex: null,
         autoFocus: false,
         tooltip: null,
         tooltipOptions: null,
@@ -89,7 +89,7 @@ export class AutoComplete extends Component {
         maxlength: PropTypes.number,
         size: PropTypes.number,
         appendTo: PropTypes.any,
-        tabindex: PropTypes.number,
+        tabIndex: PropTypes.number,
         autoFocus: PropTypes.bool,
         tooltip: PropTypes.string,
         tooltipOptions: PropTypes.object,
@@ -615,7 +615,7 @@ export class AutoComplete extends Component {
                         defaultValue={this.formatValue(this.props.value)} role="searchbox" aria-autocomplete="list" aria-controls={this.listId}
                         aria-labelledby={this.props.ariaLabelledBy} className={inputClassName} style={this.props.inputStyle} autoComplete="off"
                         readOnly={this.props.readonly} disabled={this.props.disabled} placeholder={this.props.placeholder} size={this.props.size}
-                        maxLength={this.props.maxlength} tabIndex={this.props.tabindex}
+                        maxLength={this.props.maxlength} tabIndex={this.props.tabIndex}
                         onBlur={this.onInputBlur} onFocus={this.onInputFocus} onChange={this.onInputChange}
                         onMouseDown={this.props.onMouseDown} onKeyUp={this.props.onKeyUp} onKeyDown={this.onInputKeyDown}
                         onKeyPress={this.props.onKeyPress} onContextMenu={this.props.onContextMenu}
@@ -643,7 +643,7 @@ export class AutoComplete extends Component {
             <li className="p-autocomplete-input-token">
                 <input ref={(el) => this.inputEl = el} type={this.props.type} disabled={this.props.disabled} placeholder={this.props.placeholder}
                        role="searchbox" aria-autocomplete="list" aria-controls={this.listId} aria-labelledby={this.props.ariaLabelledBy}
-                       autoComplete="off" tabIndex={this.props.tabindex} onChange={this.onInputChange} id={this.props.inputId} name={this.props.name}
+                       autoComplete="off" tabIndex={this.props.tabIndex} onChange={this.onInputChange} id={this.props.inputId} name={this.props.name}
                        style={this.props.inputStyle} className={this.props.inputClassName} maxLength={this.props.maxlength}
                        onKeyUp={this.props.onKeyUp} onKeyDown={this.onInputKeyDown} onKeyPress={this.props.onKeyPress}
                        onFocus={this.onMultiInputFocus} onBlur={this.onMultiInputBlur} />
diff --git a/src/components/captcha/Captcha.js b/src/components/captcha/Captcha.js
index 4f07585b4d..02520078bf 100644
--- a/src/components/captcha/Captcha.js
+++ b/src/components/captcha/Captcha.js
@@ -22,7 +22,7 @@ export class Captcha extends Component {
         theme: PropTypes.string,
         type: PropTypes.string,
         size: PropTypes.string,
-        tabindex: PropTypes.number,
+        tabIndex: PropTypes.number,
         language: PropTypes.string,
         onResponse: PropTypes.func,
         onExpire: PropTypes.func
diff --git a/src/components/colorpicker/ColorPicker.d.ts b/src/components/colorpicker/ColorPicker.d.ts
index 9c4d596145..b975bc5477 100644
--- a/src/components/colorpicker/ColorPicker.d.ts
+++ b/src/components/colorpicker/ColorPicker.d.ts
@@ -11,11 +11,11 @@ interface ColorPickerProps {
     format?: string;
     appendTo?: any;
     disabled?: boolean;
-    tabindex?: string;
+    tabIndex?: string;
     inputId?: string;
     tooltip?: any;
     tooltipOptions?: TooltipOptions;
     onChange?(value: any, target: {name: string, id: string, value: any}): void;
 }
 
-export class ColorPicker extends React.Component<ColorPickerProps,any> {}
\ No newline at end of file
+export class ColorPicker extends React.Component<ColorPickerProps,any> {}
diff --git a/src/components/inputmask/InputMask.d.ts b/src/components/inputmask/InputMask.d.ts
index 83fb51546c..142f557f2d 100644
--- a/src/components/inputmask/InputMask.d.ts
+++ b/src/components/inputmask/InputMask.d.ts
@@ -14,7 +14,7 @@ interface InputMaskProps {
     placeholder?: string;
     size?: number;
     maxlength?: number;
-    tabindex?: number;
+    tabIndex?: number;
     disabled?: boolean;
     readonly?: boolean;
     name?: string;
diff --git a/src/components/inputmask/InputMask.js b/src/components/inputmask/InputMask.js
index 292e09f272..2f51678d00 100644
--- a/src/components/inputmask/InputMask.js
+++ b/src/components/inputmask/InputMask.js
@@ -21,7 +21,7 @@ export class InputMask extends Component {
         placeholder: null,
         size: null,
         maxlength: null,
-        tabindex: null,
+        tabIndex: null,
         disabled: false,
         readonly: false,
         name: null,
@@ -48,7 +48,7 @@ export class InputMask extends Component {
         placeholder: PropTypes.string,
         size: PropTypes.number,
         maxlength: PropTypes.number,
-        tabindex: PropTypes.number,
+        tabIndex: PropTypes.number,
         disabled: PropTypes.bool,
         readonly: PropTypes.bool,
         name: PropTypes.string,
@@ -605,7 +605,7 @@ export class InputMask extends Component {
         let inputMaskClassName = classNames('p-inputmask', this.props.className);
         return (
             <InputText id={this.props.id} ref={(el) => this.input = ReactDOM.findDOMNode(el)} type={this.props.type} name={this.props.name} style={this.props.style} className={inputMaskClassName} placeholder={this.props.placeholder}
-                size={this.props.size} maxLength={this.props.maxlength} tabIndex={this.props.tabindex} disabled={this.props.disabled} readOnly={this.props.readonly}
+                size={this.props.size} maxLength={this.props.maxlength} tabIndex={this.props.tabIndex} disabled={this.props.disabled} readOnly={this.props.readonly}
                 onFocus={this.onFocus} onBlur={this.onBlur} onKeyDown={this.onKeyDown} onKeyPress={this.onKeyPress}
                 onInput={this.onInput} onPaste={this.handleInputChange} required={this.props.required} aria-labelledby={this.props.ariaLabelledBy} />
         );
diff --git a/src/showcase/autocomplete/AutoCompleteDoc.js b/src/showcase/autocomplete/AutoCompleteDoc.js
index 231c53957b..95cc5459c1 100644
--- a/src/showcase/autocomplete/AutoCompleteDoc.js
+++ b/src/showcase/autocomplete/AutoCompleteDoc.js
@@ -490,7 +490,7 @@ itemTemplate(item) {
                                         <td>DOM element instance where the overlay panel should be mounted.</td>
                                     </tr>
                                     <tr>
-                                        <td>tabindex</td>
+                                        <td>tabIndex</td>
                                         <td>number</td>
                                         <td>null</td>
                                         <td>Index of the element in tabbing order.</td>
diff --git a/src/showcase/captcha/CaptchaDoc.js b/src/showcase/captcha/CaptchaDoc.js
index a2d329be63..3ffaa9351b 100644
--- a/src/showcase/captcha/CaptchaDoc.js
+++ b/src/showcase/captcha/CaptchaDoc.js
@@ -184,7 +184,7 @@ showResponse(response) {
                                         <td>tabIndex</td>
                                         <td>number</td>
                                         <td>0</td>
-                                        <td>The tabindex of the widget and challenge.</td>
+                                        <td>The tabIndex of the widget and challenge.</td>
                                     </tr>
                                     <tr>
                                         <td>language</td>
diff --git a/src/showcase/inputmask/InputMaskDoc.js b/src/showcase/inputmask/InputMaskDoc.js
index 676da8beb9..5f42373729 100644
--- a/src/showcase/inputmask/InputMaskDoc.js
+++ b/src/showcase/inputmask/InputMaskDoc.js
@@ -335,7 +335,7 @@ import { InputMask } from 'primereact/inputmask';
                                         <td>Maximum number of character allows in the input field.</td>
                                     </tr>
                                     <tr>
-                                        <td>tabindex</td>
+                                        <td>tabIndex</td>
                                         <td>number</td>
                                         <td>null</td>
                                         <td>Specifies tab order of the element.</td>
diff --git a/src/showcase/inputnumber/InputNumberDoc.js b/src/showcase/inputnumber/InputNumberDoc.js
index a8b0f1d194..4d779dd6b7 100644
--- a/src/showcase/inputnumber/InputNumberDoc.js
+++ b/src/showcase/inputnumber/InputNumberDoc.js
@@ -743,7 +743,7 @@ Vertical
                             <td>When present, it specifies that an input field must be filled out before submitting the form.</td>
                         </tr>
                         <tr>
-                            <td>tabindex</td>
+                            <td>tabIndex</td>
                             <td>number</td>
                             <td>null</td>
                             <td>Index of the element in tabbing order.</td>