diff --git a/firmware/usb.c b/firmware/usb.c
index 64e727330a..4a6ab2231c 100644
--- a/firmware/usb.c
+++ b/firmware/usb.c
@@ -66,7 +66,7 @@ bool do_screendump_instead_of_usb = false;
 /* We assume that the USB cable is extracted */
 static int usb_state = USB_EXTRACTED;
 
-#if (CONFIG_STORAGE & STORAGE_MMC) && defined(USB_FULL_INIT)
+#if (CONFIG_STORAGE & STORAGE_MMC) && defined(USB_FULL_INIT) && !defined(HAVE_USBSTACK)
 static int usb_mmc_countdown = 0;
 #endif