diff --git a/src/rollup/types.d.ts b/src/rollup/types.d.ts
index 4e66afb16df..32c3e5e237c 100644
--- a/src/rollup/types.d.ts
+++ b/src/rollup/types.d.ts
@@ -553,7 +553,7 @@ export interface RollupBuild {
 }
 
 export interface RollupOptions extends InputOptions {
-	output?: OutputOptions;
+	output?: OutputOptions | OutputOptions[];
 }
 
 export function rollup(options: RollupOptions): Promise<RollupBuild>;