diff --git a/syncserver.ini b/syncserver.ini
index cf53064..b3073b8 100644
--- a/syncserver.ini
+++ b/syncserver.ini
@@ -18,7 +18,7 @@ public_url = http://localhost:5000/
 # It should be long and randomly-generated.
 # The following command will give a suitable value on *nix systems:
 #
-#    head -c 40 /dev/urandom | sha1sum
+#    head -c 20 /dev/urandom | sha1sum
 #
 # If not specified then the server will generate a temporary one at startup.
 #secret = INSERT_SECRET_KEY_HERE