1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/usb.c b/firmware/usb.c
index 90537f9a84..327b07d39e 100644
--- a/firmware/usb.c
+++ b/firmware/usb.c
@@ -74,7 +74,7 @@ static int usb_mmc_countdown = 0;
 
 /* FIXME: The extra 0x400 is consumed by fat_mount() when the fsinfo
    needs updating */
-static long usb_stack[(DEFAULT_STACK_SIZE + 0x400)/4];
+static long usb_stack[(DEFAULT_STACK_SIZE + 0x400)/sizeof(long)];
 static const char usb_thread_name[] = "usb";
 static struct event_queue usb_queue;
 static bool last_usb_status;