diff --git a/src/IERC5805Modified.sol b/src/IERC5805Modified.sol
deleted file mode 100644
index 32097d0..0000000
--- a/src/IERC5805Modified.sol
+++ /dev/null
@@ -1,11 +0,0 @@
-// SPDX-License-Identifier: MIT
-pragma solidity ^0.8.20;
-
-import {IVotesPartialDelegation} from "src/IVotesPartialDelegation.sol";
-import {IERC6372} from "@openzeppelin/contracts/interfaces/IERC6372.sol";
-
-/**
- * @dev Interface that mostly supports the ERC5805 standard, but with a modified IVotes that more appropriately
- * describes partial delegation.
- */
-interface IERC5805Modified is IERC6372, IVotesPartialDelegation {}
diff --git a/src/IVotesPartialDelegation.sol b/src/IVotesPartialDelegation.sol
index cf02bad..d7f9208 100644
--- a/src/IVotesPartialDelegation.sol
+++ b/src/IVotesPartialDelegation.sol
@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
+import {IERC6372} from "@openzeppelin/contracts/interfaces/IERC6372.sol";
+
 struct PartialDelegation {
   address _delegatee;
   uint96 _numerator;
@@ -14,7 +16,7 @@ struct DelegationAdjustment {
 /**
  * @dev Common interface for {ERC20VotesPartialDelegation} and other {VotesPartialDelegation}-enabled contracts.
  */
-interface IVotesPartialDelegation {
+interface IVotesPartialDelegation is IERC6372 {
   /**
    * @dev The signature used has expired.
    */
diff --git a/src/VotesPartialDelegationUpgradeable.sol b/src/VotesPartialDelegationUpgradeable.sol
index 7078a42..01812ed 100644
--- a/src/VotesPartialDelegationUpgradeable.sol
+++ b/src/VotesPartialDelegationUpgradeable.sol
@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: MIT
 pragma solidity ^0.8.20;
 
-import {IERC5805Modified} from "src/IERC5805Modified.sol";
 import {ContextUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
 import {NoncesUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/NoncesUpgradeable.sol";
 import {EIP712Upgradeable} from "@openzeppelin/contracts-upgradeable/utils/cryptography/EIP712Upgradeable.sol";
@@ -10,8 +9,9 @@ import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
 import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
 import {Time} from "@openzeppelin/contracts/utils/types/Time.sol";
 import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
-import {PartialDelegation, DelegationAdjustment} from "src/IVotesPartialDelegation.sol";
 import {SignatureChecker} from "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";
+import {PartialDelegation, DelegationAdjustment} from "src/IVotesPartialDelegation.sol";
+import {IVotesPartialDelegation} from "src/IVotesPartialDelegation.sol";
 
 /**
  * @dev This is a base abstract contract that tracks voting units, which are a measure of voting power that can be
@@ -36,7 +36,7 @@ abstract contract VotesPartialDelegationUpgradeable is
   ContextUpgradeable,
   EIP712Upgradeable,
   NoncesUpgradeable,
-  IERC5805Modified
+  IVotesPartialDelegation
 {
   using Checkpoints for Checkpoints.Trace208;