add previousOwner field to OwnershipTransferred event

8 years ago · 6beac0f215
parent b59469c151
commit 6beac0f215
1 changed files with 1 additions and 1 deletions
--- a/contracts/ownership/Ownable.sol
+++ b/contracts/ownership/Ownable.sol
@ -10,7 +10,7 @@ contract Ownable {
  address public owner;
-  event OwnershipTransferred(address indexed newOwner);
+  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  /**