diff --git a/core/src/components.d.ts b/core/src/components.d.ts
index 01bf58a496..102ce79199 100644
--- a/core/src/components.d.ts
+++ b/core/src/components.d.ts
@@ -74,7 +74,7 @@ export namespace Components {
     /**
     * Dismiss the open action sheet overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, actionSheetId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, actionSheetId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened action sheet overlay.
     */
@@ -223,7 +223,7 @@ export namespace Components {
     /**
     * Dismiss the open alert overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, alertId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, alertId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened alert overlay.
     */
@@ -2229,7 +2229,7 @@ export namespace Components {
     /**
     * Dismiss the open loading overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, loadingId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, loadingId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened loading overlay.
     */
@@ -2572,7 +2572,7 @@ export namespace Components {
     /**
     * Dismiss the open modal overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, modalId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, modalId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened modal overlay.
     */
@@ -2880,7 +2880,7 @@ export namespace Components {
 
   interface IonPickerController {
     'create': (opts?: PickerOptions | undefined) => Promise<HTMLIonPickerElement>;
-    'dismiss': (data?: any, role?: string | undefined, pickerId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, pickerId?: number | undefined) => Promise<void>;
     'getTop': () => HTMLIonPickerElement;
   }
   interface IonPickerControllerAttributes extends StencilHTMLAttributes {}
@@ -3024,7 +3024,7 @@ export namespace Components {
     /**
     * Dismiss the open popover overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, popoverId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, popoverId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened popover overlay.
     */
@@ -4861,7 +4861,7 @@ export namespace Components {
     /**
     * Dismiss the open toast overlay.
     */
-    'dismiss': (data?: any, role?: string | undefined, toastId?: number) => Promise<void>;
+    'dismiss': (data?: any, role?: string | undefined, toastId?: number | undefined) => Promise<void>;
     /**
     * Get the most recently opened toast overlay.
     */
diff --git a/core/src/components/action-sheet-controller/action-sheet-controller.tsx b/core/src/components/action-sheet-controller/action-sheet-controller.tsx
index 6980da4224..353f0699ac 100644
--- a/core/src/components/action-sheet-controller/action-sheet-controller.tsx
+++ b/core/src/components/action-sheet-controller/action-sheet-controller.tsx
@@ -22,7 +22,7 @@ export class ActionSheetController implements OverlayController {
    * Dismiss the open action sheet overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, actionSheetId = -1) {
+  dismiss(data?: any, role?: string, actionSheetId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-action-sheet', actionSheetId);
   }
 
diff --git a/core/src/components/alert-controller/alert-controller.tsx b/core/src/components/alert-controller/alert-controller.tsx
index ee60bca122..c102c88d94 100644
--- a/core/src/components/alert-controller/alert-controller.tsx
+++ b/core/src/components/alert-controller/alert-controller.tsx
@@ -22,7 +22,7 @@ export class AlertController implements OverlayController {
    * Dismiss the open alert overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, alertId = -1) {
+  dismiss(data?: any, role?: string, alertId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-alert', alertId);
   }
 
diff --git a/core/src/components/loading-controller/loading-controller.tsx b/core/src/components/loading-controller/loading-controller.tsx
index 833db60203..ccb15f7502 100644
--- a/core/src/components/loading-controller/loading-controller.tsx
+++ b/core/src/components/loading-controller/loading-controller.tsx
@@ -22,7 +22,7 @@ export class LoadingController implements OverlayController {
    * Dismiss the open loading overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, loadingId = -1) {
+  dismiss(data?: any, role?: string, loadingId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-loading', loadingId);
   }
 
diff --git a/core/src/components/modal-controller/modal-controller.tsx b/core/src/components/modal-controller/modal-controller.tsx
index b54774e6be..445a6890df 100644
--- a/core/src/components/modal-controller/modal-controller.tsx
+++ b/core/src/components/modal-controller/modal-controller.tsx
@@ -22,7 +22,7 @@ export class ModalController implements OverlayController {
    * Dismiss the open modal overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, modalId = -1) {
+  dismiss(data?: any, role?: string, modalId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-modal', modalId);
   }
 
diff --git a/core/src/components/picker-controller/picker-controller.tsx b/core/src/components/picker-controller/picker-controller.tsx
index cbe26a713d..4318a0aa8b 100644
--- a/core/src/components/picker-controller/picker-controller.tsx
+++ b/core/src/components/picker-controller/picker-controller.tsx
@@ -23,7 +23,7 @@ export class PickerController implements OverlayController {
    * Dismiss the open picker overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, pickerId = -1) {
+  dismiss(data?: any, role?: string, pickerId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-picker', pickerId);
   }
 
diff --git a/core/src/components/popover-controller/popover-controller.tsx b/core/src/components/popover-controller/popover-controller.tsx
index d4092aeea8..1ba1b1624b 100644
--- a/core/src/components/popover-controller/popover-controller.tsx
+++ b/core/src/components/popover-controller/popover-controller.tsx
@@ -22,7 +22,7 @@ export class PopoverController implements OverlayController {
    * Dismiss the open popover overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, popoverId = -1) {
+  dismiss(data?: any, role?: string, popoverId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-popover', popoverId);
   }
 
diff --git a/core/src/components/toast-controller/toast-controller.tsx b/core/src/components/toast-controller/toast-controller.tsx
index 1c00880591..b8c8fdd63c 100644
--- a/core/src/components/toast-controller/toast-controller.tsx
+++ b/core/src/components/toast-controller/toast-controller.tsx
@@ -22,7 +22,7 @@ export class ToastController implements OverlayController {
    * Dismiss the open toast overlay.
    */
   @Method()
-  dismiss(data?: any, role?: string, toastId = -1) {
+  dismiss(data?: any, role?: string, toastId?: number) {
     return dismissOverlay(this.doc, data, role, 'ion-toast', toastId);
   }
 
diff --git a/core/src/utils/overlays.ts b/core/src/utils/overlays.ts
index 9c24a18f87..ed6caba75e 100644
--- a/core/src/utils/overlays.ts
+++ b/core/src/utils/overlays.ts
@@ -41,7 +41,7 @@ export function connectListeners(doc: Document) {
   }
 }
 
-export function dismissOverlay(doc: Document, data: any, role: string | undefined, overlayTag: string, id: number): Promise<void> {
+export function dismissOverlay(doc: Document, data: any, role: string | undefined, overlayTag: string, id?: number): Promise<void> {
   const overlay = getOverlay(doc, overlayTag, id);
   if (!overlay) {
     return Promise.reject('overlay does not exist');