diff --git a/runtime/doc/message.txt b/runtime/doc/message.txt
index 9ce649d..fbf4ce2 100644
--- a/runtime/doc/message.txt
+++ b/runtime/doc/message.txt
@@ -1,4 +1,4 @@
-*message.txt*   For Vim version 8.2.  Last change: 2020 Sep 07
+*message.txt*   For Vim version 8.2.  Last change: 2020 Dec 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -794,6 +794,9 @@
 -> Press <Enter> or <Space> to redraw the screen and continue, without that
    key being used otherwise.
 -> Press ':' or any other Normal mode command character to start that command.
+   Note that after an external command some special keys, such as the cursor
+   keys, may not work normally, because the terminal is still set to a state
+   for executing the external command.
 -> Press 'k', <Up>, 'u', 'b' or 'g' to scroll back in the messages.  This
    works the same way as at the |more-prompt|.  Only works when 'compatible'
    is off and 'more' is on.