diff --git a/EIPS/eip-777.md b/EIPS/eip-777.md
index 6d772c6c..60cf4791 100644
--- a/EIPS/eip-777.md
+++ b/EIPS/eip-777.md
@@ -493,7 +493,7 @@ Token contracts MAY implement other functions to burn tokens.
 **`burn` function**
 
 ``` solidity
-function burn(uint256 amount) public;
+function burn(uint256 amount, bytes data) public;
 ```
 
 Burn the `amount` of tokens from the address `msg.sender`.
@@ -502,11 +502,12 @@ The *operator* and the *token holder* MUST both be the `msg.sender`.
 
 > <small>**parameters**</small>  
 > <small>`amount`: Number of tokens to burn.</small>
+> <small>`data`: Information provided by the *token holder*.</small>
 
 **`operatorBurn` function**
 
 ``` solidity
-function operatorBurn(address from, uint256 amount, bytes operatorData) public;
+function operatorBurn(address from, uint256 amount, bytes data, bytes operatorData) public;
 ```
 
 Burn the `amount` of tokens on behalf of the address `from`.