diff --git a/EIPS/eip-918.md b/EIPS/eip-918.md
index becd110928c017..c05d5086412ea5 100644
--- a/EIPS/eip-918.md
+++ b/EIPS/eip-918.md
@@ -417,7 +417,7 @@ Therefore, in the name of interoperability with existing mining programs and poo
 **NOTES**: Any already existing token implementing this interface can be declared compliant to EIP918-B (B for backwards compatible). **EIP918-B compliance is deprecated.**
 
 ```solidity
-contract EIP918-B  {
+interface EIP918-B  {
    function getChallengeNumber() public view returns (bytes32);
    function getMiningDifficulty() public view returns (uint);
    function getMiningTarget() public view returns (uint);