diff --git a/index.d.ts b/index.d.ts
index 0b71926..7fc1b12 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -245,7 +245,7 @@ declare module "kafka-streams" {
         fromMost(stream$: any): KStream;
         clone(): KStream;
         window(from: number, to: number, etl?: null | ((message: any) => any), encapsulated?: boolean): { window: Window, abort: () => void, stream: KStream };
-        branch(preds: (message: any) => boolean[]): KStream[];
+        branch(preds: ((message: any) => boolean)[]): KStream[];
         close(): Promise<boolean>;
     }