1 files changed, 1 insertions, 1 deletions
diff --git a/doc/DETAILS b/doc/DETAILS
index 7ff8e2420..a9f04090f 100644
--- a/doc/DETAILS
+++ b/doc/DETAILS
@@ -103,7 +103,7 @@ Record type 3:
 	     and useful if we have duplicate keyids
 	     It points back to the directory node.
      1 byte pubkey algorithm
-     1 byte reserved
+     1 byte length of the fingerprint (in bytes)
      20 bytes fingerprint of the public key
      1 byte ownertrust:
      3 byte reserved