diff --git a/metrics_utils.cc b/metrics_utils.cc
index 5cff293..2421221 100644
--- a/metrics_utils.cc
+++ b/metrics_utils.cc
@@ -75,6 +75,7 @@
     case ErrorCode::kDownloadPayloadVerificationError:
     case ErrorCode::kSignedDeltaPayloadExpectedError:
     case ErrorCode::kDownloadPayloadPubKeyVerificationError:
+    case ErrorCode::kPayloadTimestampError:
       return metrics::AttemptResult::kPayloadVerificationFailed;
 
     case ErrorCode::kNewRootfsVerificationError:
@@ -210,6 +211,7 @@
     case ErrorCode::kOmahaRequestXMLHasEntityDecl:
     case ErrorCode::kFilesystemVerifierError:
     case ErrorCode::kUserCanceled:
+    case ErrorCode::kPayloadTimestampError:
       break;
 
     // Special flags. These can't happen (we mask them out above) but