diff --git a/README.md b/README.md
index ec52390..eb5fe44 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ $ cp <path_to_the_graphics_file> src/smb.chr
 To build the binary, execute:
 
 ```shell
-$ cl65 -t nes -o target/smb.nes src/smbdis.asm
+$ cl65 -t nes -o target/smb.nes -C src/smb.cfg src/smbdis.asm
 ```
 
 ### Running
diff --git a/src/smb.cfg b/src/smb.cfg
new file mode 100644
index 0000000..c7b9569
--- /dev/null
+++ b/src/smb.cfg
@@ -0,0 +1,19 @@
+MEMORY {
+    ZP:   file = "", start = $0000, size = $0100;
+    OAM:  file = "", start = $0200, size = $0100, define = yes;
+    RAM:  file = "", start = $0300, size = $0500;
+    HDR:  file = %O, start = $0000, size = $0010, fill = yes;
+    PRG0: file = %O, start = $8000, size = $7FFA, fill = yes, fillval = $FF;
+    PRGV: file = %O, start = $FFFA, size = $0006, fill = yes, fillval = $FF;
+    CHR:  file = %O, start = $0000, size = $2000, fill = yes, fillval = $FF;
+}
+
+SEGMENTS {
+    ZEROPAGE: load = ZP,   type = zp,  optional = yes;
+    SPRITE:   load = OAM,  type = bss, optional = yes;
+    BSS:      load = RAM,  type = bss, optional = yes;
+    HEADER:   load = HDR,  type = ro;
+    STARTUP:  load = PRG0, type = ro;
+    VECTORS:  load = PRGV, type = ro;
+    CHARS:    load = CHR,  type = ro,  optional = yes;
+}