1 files changed, 1 insertions, 1 deletions

diff --git a/PROTOCOL.u2f b/PROTOCOL.u2f
index 4bd166bbb..8ccd20b56 100644
--- a/PROTOCOL.u2f
+++ b/PROTOCOL.u2f
@@ -68,8 +68,8 @@ The corresponding private key contains:
         string          curve name
         ec_point        Q
         string          application (user-specified, but typically "ssh:")
+        uint8           flags
         string          key_handle
-        uint32          flags
         string          reserved
 
 The certificate form of a SSH U2F key appends the usual certificate