1 files changed, 1 insertions, 1 deletions

diff --git a/src/keyboard.c b/src/keyboard.c
index 8f0efb36f32..e63b3e06398 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -5550,7 +5550,7 @@ read_key_sequence (keybuf, bufsize, prompt, dont_downcase_last,
           Lisp_Object head;
 
           head = EVENT_HEAD (key);
-          if (help_char_p (head))
+          if (help_char_p (head) && t > 0)
             {
               read_key_sequence_cmd = Vprefix_help_command;
               keybuf[t++] = key;