diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
index b5cda70b..f80981fa 100644
--- a/sandbox-seccomp-filter.c
+++ b/sandbox-seccomp-filter.c
@@ -177,6 +177,9 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_shmdt
 	SC_DENY(__NR_shmdt, EACCES),
 #endif
+#ifdef __NR_ipc
+	SC_DENY(__NR_ipc, EACCES),
+#endif
 
 	/* Syscalls to permit */
 #ifdef __NR_brk
@@ -185,6 +188,9 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_clock_gettime
 	SC_ALLOW(__NR_clock_gettime),
 #endif
+#ifdef __NR_clock_gettime64
+	SC_ALLOW(__NR_clock_gettime64),
+#endif
 #ifdef __NR_close
 	SC_ALLOW(__NR_close),
 #endif
@@ -242,6 +248,15 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_nanosleep
 	SC_ALLOW(__NR_nanosleep),
 #endif
+#ifdef __NR_clock_nanosleep
+	SC_ALLOW(__NR_clock_nanosleep),
+#endif
+#ifdef __NR_clock_nanosleep_time64
+	SC_ALLOW(__NR_clock_nanosleep_time64),
+#endif
+#ifdef __NR_clock_gettime64
+	SC_ALLOW(__NR_clock_gettime64),
+#endif
 #ifdef __NR__newselect
 	SC_ALLOW(__NR__newselect),
 #endif