1 files changed, 11 insertions, 8 deletions

diff --git a/src/w16select.c b/src/w16select.c
index 185bf252895..03f63bedf0d 100644
--- a/src/w16select.c
+++ b/src/w16select.c
@@ -637,14 +637,17 @@ DEFUN ("w16-get-clipboard-data", Fw16_get_clipboard_data, Sw16_get_clipboard_dat
 /* Support checking for a clipboard selection. */
 
 DEFUN ("x-selection-exists-p", Fx_selection_exists_p, Sx_selection_exists_p,
-       0, 1, 0,
-       doc: /* Whether there is an owner for the given X Selection.
-The arg should be the name of the selection in question, typically one of
-the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.
-\(Those are literal upper-case symbol names, since that's what X expects.)
-For convenience, the symbol nil is the same as `PRIMARY',
-and t is the same as `SECONDARY'.  */)
-  (Lisp_Object selection)
+       0, 2, 0,
+       doc: /* Whether there is an owner for the given X selection.
+SELECTION should be the name of the selection in question, typically
+one of the symbols `PRIMARY', `SECONDARY', or `CLIPBOARD'.  (X expects
+these literal upper-case names.)  The symbol nil is the same as
+`PRIMARY', and t is the same as `SECONDARY'.
+
+TERMINAL should be a terminal object or a frame specifying the X
+server to query.  If omitted or nil, that stands for the selected
+frame's display, or the first available X display.  */)
+  (Lisp_Object selection, Lisp_Object terminal)
 {
   CHECK_SYMBOL (selection);