(Fsubstitute_command_keys): Fix previous change.

diff --git a/src/doc.c b/src/doc.c
index aee321c342087bdd7c237d0857c9e6965d20e9dd..616ee271a69276cfe5c83b7be75cbd2bbd756cf9 100644 (file)
--- a/src/doc.c
+++ b/src/doc.c
@@ -430,9 +430,12 @@ thus, \\=\\=\\=\\= puts \\=\\= into the output, and \\=\\=\\=\\[ puts \\=\\[ int
          /* Disregard menu bar bindings; it is positively annoying to
             mention them when there's no menu bar, and it isn't terribly
             useful even when there is a menu bar.  */
-         firstkey = Faref (tem, make_number (0));
-         if (EQ (firstkey, Qmenu_bar))
-           tem = Qnil;
+         if (!NILP (tem))
+           {
+             firstkey = Faref (tem, make_number (0));
+             if (EQ (firstkey, Qmenu_bar))
+               tem = Qnil;
+           }
 
          if (NILP (tem))       /* but not on any keys */
            {