diff --git a/user/security-in-qubes/mfa.md b/user/security-in-qubes/mfa.md
index a555e285..95f07044 100644
--- a/user/security-in-qubes/mfa.md
+++ b/user/security-in-qubes/mfa.md
@@ -207,7 +207,7 @@ website](https://docs.nitrokey.com/software/nitropy/all-platforms/installation).
 YubiKey](https://www.qubes-os.org/doc/how-to-use-usb-devices/) to this app qube
 though) or directly on the sys-usb vm.
 
-    This command will configure your Yubikey:
+    This command will configure your Yubikey, given a 20 character (all lowercase) secret key, like the example below:
 
     `ykpersonalize -2 -ochal-resp -ochal-hmac -ohmac-lt64 -ochal-btn-trig -a 303132333435363738393a3b3c3d3e3f40414243`
 
@@ -216,6 +216,7 @@ though) or directly on the sys-usb vm.
     - Challenge-Response Mode: `HMAC-SHA1`,
     - Require usser input (Optional, but Recommended): `true`,
     - HMAC-SHA1 Mode: `fixed 64 bit input`
+    - Secret Key (example): `303132333435363738393a3b3c3d3e3f40414243`
 
    **Yubikey (via GUI)**