diff --git a/source/common/common.h b/source/common/common.h
index 42ad90e..9e5d583 100644
--- a/source/common/common.h
+++ b/source/common/common.h
@@ -50,6 +50,9 @@
 // GodMode9 version
 #define VERSION "1.0.2"
 
+// Maximum payload size (arbitrary value!)
+#define SELF_MAX_SIZE (320 * 1024) // 320kB
+
 // input / output paths
 #define INPUT_PATHS     "0:", "0:/files9", "1:/rw/files9"
 #define OUTPUT_PATH     "0:/gm9out"
diff --git a/source/godmode.c b/source/godmode.c
index 840fc16..d4d44e2 100644
--- a/source/godmode.c
+++ b/source/godmode.c
@@ -237,7 +237,7 @@ u32 SdFormatMenu(void) {
     
     if (IS_A9LH) {
         InitSDCardFS(); // on A9LH: copy the payload from mem to SD root
-        FileSetData("0:/arm9loaderhax_si.bin", (u8*) 0x23F00000, 0x40000, 0, true);
+        FileSetData("0:/arm9loaderhax_si.bin", (u8*) 0x23F00000, SELF_MAX_SIZE, 0, true);
         DeinitSDCardFS();
     }
     
diff --git a/source/virtual/vmem.c b/source/virtual/vmem.c
index e79a5ff..9d8d91b 100644
--- a/source/virtual/vmem.c
+++ b/source/virtual/vmem.c
@@ -17,7 +17,7 @@ static const VirtualFile vMemFileTemplates[] = {
     // { "otp.mem"          , 0x10012000, 0x00000108, 0xFF, 0 },
     { "bootrom.mem"      , 0xFFFF0000, 0x00010000, 0xFF, 0 },
     { "bootrom_unp.mem"  , 0xFFFF0000, 0x00008000, 0xFF, 0 },
-    { "godmode9.bin"     , 0x23F00000, 0x00040000, 0xFF, 0 } // arbitrary size
+    { "godmode9.bin"     , 0x23F00000, SELF_MAX_SIZE, 0xFF, 0 }
 };
 
 bool ReadVMemDir(VirtualFile* vfile, VirtualDir* vdir) { // uses a generic vdir object generated in virtual.c