diff --git a/build.bat b/build.bat
index aece78f..dff22a3 100644
--- a/build.bat
+++ b/build.bat
@@ -2,9 +2,10 @@ cd gba
 make clean
 make
 cd ..
+mkdir data
 mv -f gba/gba_mb.gba data/gba_mb.gba
 make -f Makefile.gc clean
 make -f Makefile.gc
 make -f Makefile.wii clean
 make -f Makefile.wii
-pause
\ No newline at end of file
+pause
diff --git a/source/main.c b/source/main.c
index 7fd5683..f2c11f8 100644
--- a/source/main.c
+++ b/source/main.c
@@ -20,8 +20,7 @@
 //safe si transfer delay in between calls
 #define SI_TRANS_DELAY 50
 
-extern u8 gba_mb_gba[];
-extern u32 gba_mb_gba_size;
+#include "gba_mb_gba.h"
 
 void printmain()
 {