diff --git a/src/mame/machine/315-5881_helper.c b/src/mame/machine/315-5881_helper.c
index 1b99a0d0a64..0012d4a09e6 100644
--- a/src/mame/machine/315-5881_helper.c
+++ b/src/mame/machine/315-5881_helper.c
@@ -8,7 +8,6 @@
   Hikaru
   Model 2
   Model 3
-  SP/Aurora
   (more?)
 
   As the encryption isn't fully understood yet this file holds the current keys, these are subject to change.