message: Correct decimals key
diff: @@ -86,7 +86,7 @@ export class ERC20 implements IERC20 {
  }
  public async decimals(callerAddress: string): Promise<BigNumber> {
  - const result = await this.readMethod("totalSupply", callerAddress);
  + const result = await this.readMethod("decimals", callerAddress);
  return new BigNumber(result, 16);
  }
  