diff --git a/manifests/ssh/pam.pp b/manifests/ssh/pam.pp
index 53ea1fd7b7dc4a334d1f21428cd1730753109c52..3e9bca2cf787b9ac762a2a62fa73fef0909c1c56 100644
--- a/manifests/ssh/pam.pp
+++ b/manifests/ssh/pam.pp
@@ -4,6 +4,9 @@
 # regular logins.
 #
 # Currently, only Debian is supported when $pam_duo is true.
+#
+# If you are using the SLURM job scheduler, setting $pam_slurm to true will
+# cause user logins to be rejected unless they have a valid job allocation.
 
 class ssh::pam (
   $pam_afs   = true,