diff --git a/kernel/signal.c b/kernel/signal.c
index 7aaa51d8e5b8895f047651caa0b021a6e7a88113..9692499c77cf8575494c844b170c1d1aea6d3afd 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -3286,6 +3286,7 @@ SYSCALL_DEFINE1(ssetmask, int, newmask)
 	int old = current->blocked.sig[0];
 	sigset_t newset;
 
+	siginitset(&newset, newmask);
 	set_current_blocked(&newset);
 
 	return old;