diff --git a/types/ethereumjs-abi/index.d.ts b/types/ethereumjs-abi/index.d.ts
index 4314e46cbd..9208712d59 100644
--- a/types/ethereumjs-abi/index.d.ts
+++ b/types/ethereumjs-abi/index.d.ts
@@ -8,3 +8,5 @@
 export function soliditySHA3(argTypes: string[], args: any[]): Buffer;
 export function soliditySHA256(argTypes: string[], args: any[]): Buffer;
 export function methodID(name: string, types: string[]): Buffer;
+export function simpleEncode(signature: string, ...args: any[]): Buffer;
+export function rawDecode(signature: string[], data: Buffer): any[];