diff --git a/myip.service b/myip.service
index 78e16c0..552141a 100644
--- a/myip.service
+++ b/myip.service
@@ -13,7 +13,7 @@ LockPersonality=true
 RestrictRealtime=true
 RestrictSUIDSGID=true
 RemoveIPC=true
-SystemCallFilter=@network-io @basic-io @signal @file-system @process @io-event mprotect brk
+SystemCallFilter=@network-io @basic-io @signal @file-system @process @io-event mprotect brk uname sched_getaffinity
 SystemCallFilter=~@mount
 ProtectSystem=strict
 ProtectHome=true