diff --git a/src/core/gba/gba.h b/src/core/gba/gba.h
index 70059722..b4f3caf8 100644
--- a/src/core/gba/gba.h
+++ b/src/core/gba/gba.h
@@ -40,7 +40,7 @@ enum {
 };
 
 enum {
-    SIZE_ROM   = 0x2000000,
+    SIZE_ROM   = 0x8000000,
     SIZE_BIOS  = 0x0004000,
     SIZE_IRAM  = 0x0008000,
     SIZE_WRAM  = 0x0040000,