--- a/ntpd/ntp_sandbox.c
+++ a/ntpd/ntp_sandbox.c
@@ -355,6 +355,7 @@
 	SCMP_SYS(openat),	/* SUSE */
 #endif
 	SCMP_SYS(poll),
+	SCMP_SYS(pread64),
 	SCMP_SYS(pselect6),
 	SCMP_SYS(read),
 	SCMP_SYS(recvfrom),    /* Comment this out for testing.