diff --git a/test/test-execute/exec-privatenetwork-yes.service b/test/test-execute/exec-privatenetwork-yes.service
index 5077f7eed2..a38d24912f 100644
--- a/test/test-execute/exec-privatenetwork-yes.service
+++ b/test/test-execute/exec-privatenetwork-yes.service
@@ -2,6 +2,6 @@
 Description=Test for PrivateNetwork
 
 [Service]
-ExecStart=/bin/sh -x -c '! ip link | grep ": " | grep -v ": lo:"'
+ExecStart=/bin/sh -x -c '! ip link | grep ": " | grep -Ev ": (lo|sit0@.*):"'
 Type=oneshot
 PrivateNetwork=yes