diff --git a/applecorn.po b/applecorn.po
index 58711b3..e62f9bb 100644
Binary files a/applecorn.po and b/applecorn.po differ
diff --git a/applecorn.s b/applecorn.s
index 39fb96d..8dab865 100644
--- a/applecorn.s
+++ b/applecorn.s
@@ -273,6 +273,7 @@ MAINZP      MAC
             PUT   MAINMEM.LDR
             PUT   AUXMEM.MOSEQU
             PUT   AUXMEM.INIT
+            PUT   AUXMEM.VERS
             PUT   AUXMEM.VDU
             PUT   AUXMEM.HGR
             PUT   AUXMEM.SHR
diff --git a/auxmem.init.s b/auxmem.init.s
index a30465c..f1d882a 100644
--- a/auxmem.init.s
+++ b/auxmem.init.s
@@ -224,5 +224,4 @@ BYTE00      BEQ   BYTE00A         ; OSBYTE 0,0 - generate error
             RTS                   ; %000x1xxx host type, 'A'pple
 BYTE00A     BRK
             DB    $F7
-HELLO       ASC   'Applecorn MOS 2022-01-16'
-            DB    $00             ; Unify MOS messages
+
diff --git a/m32build b/m32build
index c0c57b2..1a06daf 100755
--- a/m32build
+++ b/m32build
@@ -3,7 +3,13 @@
 # Uses cadius for manipulating ProDOS disk images
 #
 
-merlin32 -v applecorn.s
+if ! merlin32 -v applecorn.s; then
+  echo +++++++++++++++++++++++
+  echo +++++ BUILD ERROR +++++
+  echo +++++++++++++++++++++++
+  exit 1
+fi
+
 cp APLCORN.SYSTEM APLCORN.SYSTEM#FF2000
 cadius deletefile applecorn.po /APPLECORN/APLCORN.SYSTEM
 cadius addfile applecorn.po /APPLECORN APLCORN.SYSTEM#FF2000