diff --git a/src/ts/0x.js.ts b/src/ts/0x.js.ts
index f52750eb6e..c0aaa06fac 100644
--- a/src/ts/0x.js.ts
+++ b/src/ts/0x.js.ts
@@ -18,7 +18,7 @@ const MAX_DIGITS_IN_UNSIGNED_256_INT = 78;
 export class ZeroEx {
     /**
      * Verifies that the elliptic curve signature `signature` was generated
-     * by signing `data` with the private key corresponding to the `signer` address.
+     * by signing `data` with the private key corresponding to the `signerETHAddressHex` address.
      */
     public static isValidSignature(dataHex: string, signature: ECSignature, signerETHAddressHex: string): boolean {
         assert.isHexString('dataHex', dataHex);