diff --git a/src/aio.c b/src/aio.c
index 0e0de36..96d2246 100644
--- a/src/aio.c
+++ b/src/aio.c
@@ -8,7 +8,6 @@ static const uint8_t buf_size = 32; // needs 32 bc of overflow issue on these ai
 static int aio_post(libusb_device_handle *dev, uint8_t *req, const int req_len, uint8_t *resp, const int resp_len) {
 	int transferred;
 	int r = libusb_bulk_transfer(dev, 0x01, req, req_len, &transferred, 1000);
-	usleep(5 * 1000);   /* 5ms — give the device time to prepare the response */
 	if (r < 0)
 		return r;