--- a/ntpd/ntp_sandbox.c
+++ b/ntpd/ntp_sandbox.c
@@ -411,7 +411,15 @@
 	SCMP_SYS(getpid),
 	SCMP_SYS(gettid),
 	SCMP_SYS(geteuid),
+/* __NR_ppoll is not available in Fedora 31.
+ * Needed by getaddrinfo on Arch Linux. 2019-Dec */
+/* But somebody switched to SNR vs NR so we need a way
+ * to test for old/new so we can do the right ifdef. */
+// Currently broken on Arch Linux but passes GitLab CI
+#ifdef __NR_ppoll
 	SCMP_SYS(ppoll),
+	SCMP_SYS(clock_adjtime),
+#endif
 	SCMP_SYS(sendmsg),
 #ifdef __NR_geteuid32
 	SCMP_SYS(geteuid32),