diff --git a/bookshelf/bookshelf.d.ts b/bookshelf/bookshelf.d.ts
index 1532085847..ca93456bb9 100644
--- a/bookshelf/bookshelf.d.ts
+++ b/bookshelf/bookshelf.d.ts
@@ -88,7 +88,7 @@ declare module 'bookshelf' {
 			belongsTo<R extends Model<any>>(target : {new(...args : any[]) : R}, foreignKey? : string) : R;
 			belongsToMany<R extends Model<any>>(target : {new(...args : any[]) : R}, table? : string, foreignKey? : string, otherKey? : string) : Collection<R>;
 			count(column? : string, options? : SyncOptions) : Promise<number>;
-			destroy(options : SyncOptions) : Promise<T>;
+			destroy(options? : SyncOptions) : Promise<T>;
 			fetch(options? : FetchOptions) : Promise<T>;
 			fetchAll(options? : FetchAllOptions) : Promise<Collection<T>>;
 			hasMany<R extends Model<any>>(target : {new(...args : any[]) : R}, foreignKey? : string) : Collection<R>;