diff --git a/metrics.h b/metrics.h
index ec9d880..bb9fa5e 100644
--- a/metrics.h
+++ b/metrics.h
@@ -149,6 +149,7 @@
   kVerificationFailed,          // Root or Kernel partition verification failed.
   kPostInstallFailed,           // The postinstall step failed.
   kAbnormalTermination,         // The attempt ended abnormally.
+  kUpdateCanceled,              // Update canceled by the user.
 
   kNumConstants,