diff --git a/src/syseng/lock.154 b/src/syseng/lock.155
similarity index 98%
rename from src/syseng/lock.154
rename to src/syseng/lock.155
index 7d493b91..be7261f9 100755
--- a/src/syseng/lock.154
+++ b/src/syseng/lock.155
@@ -52,6 +52,10 @@ BEG:	MOVEI P,PDL
 	.SUSET [.RXJNAME,,C]
 	CAMN C,[SIXBIT /VTFIX/] 
 	 JRST VTFIXR
+	CAMN C,[SIXBIT /TVFIX/] 
+	 JRST TVFIXR
+	CAMN C,[SIXBIT /6FIX/] 
+	 JRST 6FIXR
 	PUSHJ P,REGIO
 	MOVEI C,INMESG
 	PUSHJ P,TITYOT
@@ -1190,6 +1194,21 @@ VTFIXR:	.CALL [	SETZ		;FIX A VT52 IN ALTERNATE CHAR SET MODE.
 	.BREAK 16,160000
 
 
+TVFIXR:	.VALUE [ASCIZ /:STUFF TV
P/]	;BRING UP TV-11
+	MOVE E,[SQUOZE 0,TT11P]
+	.EVAL E,
+	 .VALUE [ASCIZ /:ITS NOT CONFIGURED WITH TV-11./]
+	HRLI E,[1]
+	.SETLOC E,
+	.BREAK 16,160000
+
+6FIXR:	MOVE E,[SQUOZE 0,PDP6UP]	;BRING UP PDP-6
+	.EVAL E,
+	 .VALUE [ASCIZ /:ITS NOT CONFIGURED WITH PDP-6./]
+	HRLI E,[-1]
+	.SETLOC E,
+	.BREAK 16,160000
+
 PAT:
 PATCH:	BLOCK 40
 EPATCH:	-1