diff --git a/doc/lispref/commands.texi b/doc/lispref/commands.texi
index 25f657404f3..1467854904c 100644
--- a/doc/lispref/commands.texi
+++ b/doc/lispref/commands.texi
@@ -930,9 +930,8 @@ was specified to run but remapped into another command.
 
 @defun this-command-keys
 This function returns a string or vector containing the key sequence
-that invoked the present command, plus any previous commands that
-generated the prefix argument for this command.  Any events read by the
-command using @code{read-event} without a timeout get tacked on to the end.
+that invoked the present command.  Any events read by the command
+using @code{read-event} without a timeout get tacked on to the end.
 
 However, if the command has called @code{read-key-sequence}, it
 returns the last read key sequence.  @xref{Key Sequence Input}.  The
@@ -943,7 +942,7 @@ fit in a string.  @xref{Input Events}.
 @group
 (this-command-keys)
 ;; @r{Now use @kbd{C-u C-x C-e} to evaluate that.}
-     @result{} "^U^X^E"
+     @result{} "^X^E"
 @end group
 @end example
 @end defun
diff --git a/src/keyboard.c b/src/keyboard.c
index bd1cdfa15bc..4d22c44810e 100644
--- a/src/keyboard.c
+++ b/src/keyboard.c
@@ -10566,8 +10566,6 @@ DEFUN ("this-single-command-keys", Fthis_single_command_keys,
        doc: /* Return the key sequence that invoked this command.
 More generally, it returns the last key sequence read, either by
 the command loop or by `read-key-sequence'.
-Unlike `this-command-keys', this function's value
-does not include prefix arguments.
 The value is always a vector.  */)
   (void)
 {