diff --git a/src/main.c b/src/main.c
index 37be853..b2263df 100644
--- a/src/main.c
+++ b/src/main.c
@@ -15,12 +15,12 @@
 int anim_render(uint16_t *fb, int index, int frame);
 
 enum usb_control_resp bl_handler(enum usb_control_state state) {
-    if (usb_control_request.bmRequestType != 0x60) return USB_CONTROL_RESP_PASS;
+    if ((usb_control_request.bmRequestType & 0x7f) != 0x43) return USB_CONTROL_RESP_PASS;
 
     if (usb_control_request.bRequest != 0x69)
         return USB_CONTROL_RESP_STALL;
 
-    asm volatile("j 0x00");
+    if (state == USB_CONTROL_FINISHED) asm volatile("j 0x00");
     return USB_CONTROL_RESP_ACK;
 }