diff --git a/cfg/supervision-128k.cfg b/cfg/supervision-128k.cfg
index 0304e2c02..a03ab0e1b 100644
--- a/cfg/supervision-128k.cfg
+++ b/cfg/supervision-128k.cfg
@@ -2,13 +2,13 @@
 # for assembler
 
 # ld65 config file
-# ld65 --config supervision.cfg -o <prog>.bin <prog>.o
+# ld65 --config supervision-128k.cfg -o <prog>.bin <prog>.o
 
 SYMBOLS {
     __STACKSIZE__: type = weak, value = $0100; # 1 page stack
 }
 MEMORY {
-    RAM:      file = "", start = $0000, size = $2000 - __STACKSIZE__;
+    RAM:      file = "", start = $0000, size = $2000 - __STACKSIZE__, define = yes;
     VRAM:     file = "", start = $4000, size = $2000;
     BANKROM1: file = %O, start = $8000, size = $4000, fill = yes, fillval = $FF;
     BANKROM2: file = %O, start = $8000, size = $4000, fill = yes, fillval = $FF;
diff --git a/cfg/supervision-16k.cfg b/cfg/supervision-16k.cfg
index 86c8fface..e0b54be23 100644
--- a/cfg/supervision-16k.cfg
+++ b/cfg/supervision-16k.cfg
@@ -1,7 +1,7 @@
 # supervision 16kbyte cartridge
 
 # ld65 config file
-# ld65 --config supervision16.cfg -o <prog>.bin <prog>.o
+# ld65 --config supervision-16k.cfg -o <prog>.bin <prog>.o
 
 SYMBOLS {
     __STACKSIZE__: type = weak, value = $0100; # 1 page stack
@@ -9,9 +9,9 @@ SYMBOLS {
 MEMORY {
     ZP:       file = "", start = $0000, size = $0100;
     CPUSTACK: file = "", start = $0100, size = $0100;
-    RAM:      file = "", start = $0200, size = $1E00 - __STACKSIZE__;
+    RAM:      file = "", start = $0200, size = $1E00 - __STACKSIZE__,            define = yes;
     VRAM:     file = "", start = $4000, size = $2000;
-    ROM:      file = %O, start = $C000, size = $4000, fill = yes, fillval = $ff, define=yes;
+    ROM:      file = %O, start = $C000, size = $4000, fill = yes, fillval = $FF, define = yes;
 }
 SEGMENTS {
     ZEROPAGE: load = ZP,             type = zp,  define   = yes;
diff --git a/cfg/supervision-64k.cfg b/cfg/supervision-64k.cfg
index 8a7665c30..9d5f15e45 100644
--- a/cfg/supervision-64k.cfg
+++ b/cfg/supervision-64k.cfg
@@ -2,13 +2,13 @@
 # for assembler
 
 # ld65 config file
-# ld65 --config supervision.cfg -o <prog>.bin <prog>.o
+# ld65 --config supervision-64k.cfg -o <prog>.bin <prog>.o
 
 SYMBOLS {
     __STACKSIZE__: type = weak, value = $0100; # 1 page stack
 }
 MEMORY {
-    RAM:      file = "", start = $0000, size = $2000 - __STACKSIZE__;
+    RAM:      file = "", start = $0000, size = $2000 - __STACKSIZE__, define = yes;
     VRAM:     file = "", start = $4000, size = $2000;
     BANKROM1: file = %O, start = $8000, size = $4000, fill = yes, fillval = $FF;
     BANKROM2: file = %O, start = $8000, size = $4000, fill = yes, fillval = $FF;
diff --git a/cfg/supervision.cfg b/cfg/supervision.cfg
index 2d20e3461..d9f189f2b 100644
--- a/cfg/supervision.cfg
+++ b/cfg/supervision.cfg
@@ -8,7 +8,7 @@ SYMBOLS {
 MEMORY {
     ZP:       file = "", start = $0000, size = $0100;
     CPUSTACK: file = "", start = $0100, size = $0100;
-    RAM:      file = "", start = $0200, size = $1E00 - __STACKSIZE__;
+    RAM:      file = "", start = $0200, size = $1E00 - __STACKSIZE__,            define = yes;
     VRAM:     file = "", start = $4000, size = $2000;
     ROM:      file = %O, start = $8000, size = $8000, fill = yes, fillval = $FF, define = yes;
 }