From snapshot 6.1-20180630

diff --git a/progs/tput.c b/progs/tput.c
index fd051eb4..88e75799 100644
--- a/progs/tput.c
+++ b/progs/tput.c
@@ -293,7 +293,7 @@ main(int argc, char **argv)
 
     term = getenv("TERM");
 
-    while ((c = getopt(argc, argv, "ST:V")) != -1) {
+    while ((c = getopt(argc, argv, "ST:Vx")) != -1) {
 	switch (c) {
 	case 'S':
 	    cmdline = FALSE;