diff --git a/error_code.h b/error_code.h
index 6a47784..fde1833 100644
--- a/error_code.h
+++ b/error_code.h
@@ -58,6 +58,7 @@
   kUnsupportedMajorPayloadVersion = 44,
   kUnsupportedMinorPayloadVersion = 45,
   kOmahaRequestXMLHasEntityDecl = 46,
+  kFilesystemVerifierError = 47,
 
   // VERY IMPORTANT! When adding new error codes:
   //