diff --git a/src/vim.h b/src/vim.h
index 57866ef..cbe14e5 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -630,6 +630,8 @@
  * flags for update_screen()
  * The higher the value, the higher the priority
  */
+#define VALID_NO_UPDATE		 5  /* no new changes, keep the command line if
+				       possible */
 #define VALID			10  /* buffer not changed, or changes marked
 				       with b_mod_* */
 #define INVERTED		20  /* redisplay inverted part that changed */