diff --git a/src/tty-ask-password-agent/tty-ask-password-agent.c b/src/tty-ask-password-agent/tty-ask-password-agent.c
index 4e31eb8b6c..4633779837 100644
--- a/src/tty-ask-password-agent/tty-ask-password-agent.c
+++ b/src/tty-ask-password-agent/tty-ask-password-agent.c
@@ -709,7 +709,6 @@ static int ask_on_this_console(const char *tty, pid_t *ret_pid, char *argv[]) {
 
         assert_se(sigprocmask_many(SIG_UNBLOCK, NULL, SIGHUP, SIGCHLD, -1) >= 0);
 
-        assert_se(sigemptyset(&sig.sa_mask) >= 0);
         assert_se(sigaction(SIGCHLD, &sig, NULL) >= 0);
 
         sig.sa_handler = SIG_DFL;