diff --git a/common/usb_storage.c b/common/usb_storage.c
index a8642c9..239bddc 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -175,7 +175,7 @@
 
 block_dev_desc_t *usb_stor_get_dev(int index)
 {
-	return (index < USB_MAX_STOR_DEV) ? &usb_dev_desc[index] : NULL;
+	return (index < usb_max_devs) ? &usb_dev_desc[index] : NULL;
 }