diff --git a/bootbox/bootbox.d.ts b/bootbox/bootbox.d.ts
index 9764a6d81d..48306fb28c 100644
--- a/bootbox/bootbox.d.ts
+++ b/bootbox/bootbox.d.ts
@@ -39,6 +39,7 @@ interface BootboxConfirmOptions extends BootboxDialogOptions {
 /** Bootbox options available for prompt modals */
 interface BootboxPromptOptions extends BootboxBaseOptions {
 	title: string;
+	value?: string;
 	callback: (result: string) => any;
 	buttons?: BootboxConfirmPromptButtonMap;
 }