diff --git a/include/mango/status.h b/include/mango/status.h
index 0634802..bd05211 100644
--- a/include/mango/status.h
+++ b/include/mango/status.h
@@ -15,6 +15,7 @@ typedef unsigned int kern_status_t;
 #define KERN_NO_DEVICE        (9)
 #define KERN_DEVICE_STUCK     (10)
 #define KERN_IO_ERROR         (11)
+#define KERN_FATAL_ERROR      (12)
 
 extern const char *kern_status_string(kern_status_t status);