diff --git a/src/worker/lib/nes/nesbanked.cfg b/src/worker/lib/nes/nesbanked.cfg
index 2f18ae5e..e83e225e 100644
--- a/src/worker/lib/nes/nesbanked.cfg
+++ b/src/worker/lib/nes/nesbanked.cfg
@@ -1,3 +1,6 @@
+# https://github.com/sehugg/8bitworkshop/issues/186
+# https://github.com/seanwiththebeard/8bitworkshop_MMC3_siegegame
+
 SYMBOLS {
     __STACKSIZE__: type = weak, value = $0300; # 3 pages stack
 }
@@ -34,13 +37,13 @@ MEMORY {
     # $0100-$0200 cpu stack
     # $0200-$0500 3 pages for ppu memory write buffer
     # $0500-$0800 3 pages for cc65 parameter stack
-    SRAM:   file = "", start = $0500, size = __STACKSIZE__, define = yes;
+    RAM:   file = "", start = $0500, size = __STACKSIZE__, define = yes;
 
     # additional 8K SRAM Bank
     # - data (run)
     # - bss
     # - heap
-    RAM:    file = "", start = $6000, size = $2000, define = yes;
+    SRAM:    file = "", start = $6000, size = $2000, define = yes;
 }
 SEGMENTS {
     ZEROPAGE: load = ZP,              type = zp;
@@ -59,7 +62,9 @@ SEGMENTS {
     CODE:     load = PRG7,            type = ro,  define   = yes;
     VECTORS:  load = VECTORS,         type = ro;
     CHARS:    load = CHR,             type = ro;
-    BSS:      load = SRAM,            type = bss, define   = yes;
+    BSS:      load = RAM,            type = bss, define   = yes;
+    XRAM:     load = SRAM, run = SRAM, type = rw,  define   = yes, optional = yes;
+    
 }
 FEATURES {
     CONDES: type    = constructor,