diff --git a/pax/src/pax.c b/pax/src/pax.c
index 20817d1..b7c1bcf 100644
--- a/pax/src/pax.c
+++ b/pax/src/pax.c
@@ -403,27 +403,27 @@ gen_init (void)
 
   if ((sigaction (SIGHUP, &n_hand, &o_hand) < 0) &&
       (o_hand.sa_handler == SIG_IGN) &&
-      (sigaction (SIGHUP, &o_hand, &o_hand) < 0))
+      (sigaction (SIGHUP, &o_hand, NULL) < 0))
     goto out;
 
   if ((sigaction (SIGTERM, &n_hand, &o_hand) < 0) &&
       (o_hand.sa_handler == SIG_IGN) &&
-      (sigaction (SIGTERM, &o_hand, &o_hand) < 0))
+      (sigaction (SIGTERM, &o_hand, NULL) < 0))
     goto out;
 
   if ((sigaction (SIGINT, &n_hand, &o_hand) < 0) &&
       (o_hand.sa_handler == SIG_IGN) &&
-      (sigaction (SIGINT, &o_hand, &o_hand) < 0))
+      (sigaction (SIGINT, &o_hand, NULL) < 0))
     goto out;
 
   if ((sigaction (SIGQUIT, &n_hand, &o_hand) < 0) &&
       (o_hand.sa_handler == SIG_IGN) &&
-      (sigaction (SIGQUIT, &o_hand, &o_hand) < 0))
+      (sigaction (SIGQUIT, &o_hand, NULL) < 0))
     goto out;
 
   if ((sigaction (SIGXCPU, &n_hand, &o_hand) < 0) &&
       (o_hand.sa_handler == SIG_IGN) &&
-      (sigaction (SIGXCPU, &o_hand, &o_hand) < 0))
+      (sigaction (SIGXCPU, &o_hand, NULL) < 0))
     goto out;
 
   n_hand.sa_handler = SIG_IGN;