diff --git a/contracts/utils/structs/CheckpointsConfidential.sol b/contracts/utils/structs/CheckpointsConfidential.sol
index 246d29f4..a163dcd8 100644
--- a/contracts/utils/structs/CheckpointsConfidential.sol
+++ b/contracts/utils/structs/CheckpointsConfidential.sol
@@ -17,11 +17,6 @@ import {Checkpoints} from "./temporary-Checkpoints.sol";
 library CheckpointsConfidential {
     using Checkpoints for Checkpoints.Trace256;
 
-    /**
-     * @dev A value was attempted to be inserted on a past checkpoint.
-     */
-    error CheckpointUnorderedInsertion();
-
     struct TraceEuint32 {
         Checkpoints.Trace256 _inner;
     }
diff --git a/scripts/generate/templates/CheckpointsConfidential.js b/scripts/generate/templates/CheckpointsConfidential.js
index c8470ddb..84f50e97 100644
--- a/scripts/generate/templates/CheckpointsConfidential.js
+++ b/scripts/generate/templates/CheckpointsConfidential.js
@@ -22,13 +22,6 @@ const libraryUsage = `\
 using Checkpoints for Checkpoints.Trace256;
 `;
 
-const errors = `\
-/**
- * @dev A value was attempted to be inserted on a past checkpoint.
- */
-error CheckpointUnorderedInsertion();
-`;
-
 const template = opts => `\
 struct ${opts.historyTypeName} {
     Checkpoints.Trace256 _inner;
@@ -125,7 +118,6 @@ module.exports = format(
   format(
     [].concat(
       libraryUsage,
-      errors,
       OPTS.map(opts => template(opts)),
     ),
   ).trimEnd(),