diff --git a/core/src/components/alert/alert-interface.ts b/core/src/components/alert/alert-interface.ts
index 898ca322e8..370943d0a7 100644
--- a/core/src/components/alert/alert-interface.ts
+++ b/core/src/components/alert/alert-interface.ts
@@ -44,7 +44,7 @@ export interface AlertInputAttributes extends JSXBase.InputHTMLAttributes<HTMLIn
 
 export interface AlertButton {
   text: string;
-  role?: string;
+  role?: 'cancel' | 'destructive' | string;
   cssClass?: string | string[];
   handler?: (value: any) => boolean | void | {[key: string]: any};
 }
diff --git a/core/src/components/alert/readme.md b/core/src/components/alert/readme.md
index ab4dbc9a79..a7e30e6f61 100644
--- a/core/src/components/alert/readme.md
+++ b/core/src/components/alert/readme.md
@@ -48,7 +48,7 @@ Any of the defined [CSS Custom Properties](#css-custom-properties) can be used t
 ```typescript
 interface AlertButton {
   text: string;
-  role?: string;
+  role?: 'cancel' | 'destructive' | string;
   cssClass?: string | string[];
   handler?: (value: any) => boolean | void | {[key: string]: any};
 }