diff --git a/error_code.h b/error_code.h
index 0e79c87..9fe047c 100644
--- a/error_code.h
+++ b/error_code.h
@@ -44,6 +44,7 @@
   kTune2FsFailure,
   kRebootFailure,
   kPackageExtractFileFailure,
+  kPatchApplicationFailure,
   kVendorFailure = 200
 };