diff --git a/arm9/source/gamecart/gamecart.c b/arm9/source/gamecart/gamecart.c
index 95e6239..a4ddfeb 100644
--- a/arm9/source/gamecart/gamecart.c
+++ b/arm9/source/gamecart/gamecart.c
@@ -246,7 +246,7 @@ u32 InitCartRead(CartData* cdata) {
         if (nds_header->device_capacity >= 15) return 1; // too big, not valid
         if (cdata->cart_size == 0)
             cdata->cart_size = (128 * 1024) << nds_header->device_capacity;
-        cdata->data_size = nds_header->ntr_rom_size;
+        cdata->data_size = nds_header->ntr_rom_size + 0x88;
         cdata->arm9i_rom_offset = 0;
 
         // TWL header