diff --git a/core/src/components.d.ts b/core/src/components.d.ts
index 5017c8f771..2075c004bb 100644
--- a/core/src/components.d.ts
+++ b/core/src/components.d.ts
@@ -441,7 +441,7 @@ export namespace Components {
     /**
     * The icon name to use for the back button.
     */
-    'icon'?: string;
+    'icon'?: string | null;
     /**
     * The mode determines which platform styles to use. Possible values are: `"ios"` or `"md"`.
     */
@@ -449,7 +449,7 @@ export namespace Components {
     /**
     * The text to display in the back button.
     */
-    'text'?: string;
+    'text'?: string | null;
   }
   interface IonBackButtonAttributes extends StencilHTMLAttributes {
     /**
@@ -463,7 +463,7 @@ export namespace Components {
     /**
     * The icon name to use for the back button.
     */
-    'icon'?: string;
+    'icon'?: string | null;
     /**
     * The mode determines which platform styles to use. Possible values are: `"ios"` or `"md"`.
     */
@@ -471,7 +471,7 @@ export namespace Components {
     /**
     * The text to display in the back button.
     */
-    'text'?: string;
+    'text'?: string | null;
   }
 
   interface IonBackdrop {
diff --git a/core/src/utils/haptic.ts b/core/src/utils/haptic.ts
index 95663d99d1..be99233a26 100644
--- a/core/src/utils/haptic.ts
+++ b/core/src/utils/haptic.ts
@@ -53,7 +53,7 @@ export function hapticSelectionEnd() {
  * Use this to indicate success/failure/warning to the user.
  * options should be of the type `{ type: 'success' }` (or `warning`/`error`)
  */
-export function hapticNotification(options: { type:  'success' | 'warning' | 'error' }) {
+export function hapticNotification(options: { type: 'success' | 'warning' | 'error' }) {
   const engine = (window as any).TapticEngine;
   if (engine) {
     engine.notification(options);