diff --git a/docs/configuring-playbook-shared-secret-auth.md b/docs/configuring-playbook-shared-secret-auth.md
index 87b151a4a..21d1c332a 100644
--- a/docs/configuring-playbook-shared-secret-auth.md
+++ b/docs/configuring-playbook-shared-secret-auth.md
@@ -11,6 +11,8 @@ matrix_synapse_ext_password_provider_shared_secret_auth_enabled: true
 matrix_synapse_ext_password_provider_shared_secret_auth_shared_secret: YOUR_SHARED_SECRET_GOES_HERE
 ```
 
+You can generate a strong shared secret with a command like this: `pwgen -s 64 1`
+
 
 ## Authenticating only using a password provider