diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c
index 96ab141f7..be2397671 100644
--- a/sandbox-seccomp-filter.c
+++ b/sandbox-seccomp-filter.c
@@ -245,9 +245,6 @@ static const struct sock_filter preauth_insns[] = {
 #ifdef __NR_clock_nanosleep
 	SC_ALLOW(__NR_clock_nanosleep),
 #endif
-#ifdef __NR_clock_nanosleep
-	SC_ALLOW(__NR_clock_nanosleep),
-#endif
 #ifdef __NR__newselect
 	SC_ALLOW(__NR__newselect),
 #endif