1 files changed, 4 insertions, 1 deletions
diff --git a/clock.c b/clock.c
index c3040f4..846854d 100644
--- a/clock.c
+++ b/clock.c
@@ -246,6 +246,7 @@ int
 main(int argc, char *argv[])
 {
 	int timerfd = -1, tcset = 0, old_flags = -1, old_sig = 0, owner_set = 0;
+	int saved_errno;
 	struct itimerspec itimerspec;
 	struct sigaction sigact;
 	struct termios stty, saved_stty;
@@ -338,9 +339,11 @@ main(int argc, char *argv[])
 	return 0;
 
 fail:
-	perror(argv0 ? argv0 : "clock");
+	saved_errno = errno;
 	fprintf(stdout, "\033[?25h\n\033[?1049l");
 	fflush(stdout);
+	errno = saved_errno;
+	perror(argv0 ? argv0 : "clock");
 	if (owner_set)
 		fcntl(STDIN_FILENO, F_SETOWN_EX, &old_owner);
 	if (old_flags != -1)