--- kdm.conf.ORIG	2014-04-10 15:35:03.000000000 +0100
+++ kdm.conf	2014-06-18 12:12:32.140316452 +0100
@@ -30,7 +30,7 @@
         # quit plymouth all the time. Note that sleeping appears necessary
         # as the VT freeing is somewhat delayed and KDM would otherwise go
         # to configured KVT+1 (if plymouth was using it).
-        $(plymouth quit && plymouth wait && sleep 1) || :
+        $(plymouth --quit && plymouth --wait && sleep 1) || :
         if [ "$RUNLEVEL" = S -o "$RUNLEVEL" = 1 ]
         then
             # Single-user mode