diff --git a/avr/usbload/main.c b/avr/usbload/main.c
index 7e32a81..3a40f3b 100644
--- a/avr/usbload/main.c
+++ b/avr/usbload/main.c
@@ -358,7 +358,7 @@ int main(void)
     printf("USB poll done\n");
     usbDeviceDisconnect();      
     printf("USB disconnect\n");
-    crc_check_bulk_memory(0x000000,0x80000);
+    crc_check_bulk_memory(0x000000,0x1000);
     
     printf("Disable snes WR\n");
     snes_wr_disable();