--- a/criu/cr-restore.c
+++ b/criu/cr-restore.c
@@ -650,3 +650,2 @@ static void zombie_prepare_signals(void)
 		(1 << SIGSYS)	|\
-		(1 << SIGUNUSED)|\
 		(1 << SIGSTKFLT)|\
--- a/test/zdtm/static/pthread01.c
+++ b/test/zdtm/static/pthread01.c
@@ -45,3 +45,3 @@ static char *decode_signal(const sigset_t *s, char *buf)
 	COLLECT(SIGXFSZ); COLLECT(SIGVTALRM); COLLECT(SIGPROF); COLLECT(SIGWINCH); COLLECT(SIGIO);
-	COLLECT(SIGPOLL); COLLECT(SIGPWR); COLLECT(SIGSYS); COLLECT(SIGUNUSED);
+	COLLECT(SIGPOLL); COLLECT(SIGPWR); COLLECT(SIGSYS);
 #undef COLLECT