diff --git a/tests/fixtures/tunnel-ifupdown2.interfaces b/tests/fixtures/tunnel-ifupdown2.interfaces
index 4e93b91..f38e139 100644
--- a/tests/fixtures/tunnel-ifupdown2.interfaces
+++ b/tests/fixtures/tunnel-ifupdown2.interfaces
@@ -4,6 +4,7 @@ iface tun0
 	tunnel-endpoint 203.0.113.1
 	tunnel-mode gre
 	tunnel-physdev eth0
+	tunnel-ttl 255
 	address 203.0.113.10/30
 	gateway 203.0.113.9
 
diff --git a/tests/fixtures/tunnel-legacy.interfaces b/tests/fixtures/tunnel-legacy.interfaces
index bb030bd..c20ecf7 100644
--- a/tests/fixtures/tunnel-legacy.interfaces
+++ b/tests/fixtures/tunnel-legacy.interfaces
@@ -4,6 +4,7 @@ iface tun0
 	endpoint 203.0.113.1
 	mode gre
 	tunnel-dev eth0
+	ttl 255
 	address 203.0.113.10/30
 	gateway 203.0.113.9
 
diff --git a/tests/fixtures/tunnel.interfaces b/tests/fixtures/tunnel.interfaces
index 4bf46de..12a081b 100644
--- a/tests/fixtures/tunnel.interfaces
+++ b/tests/fixtures/tunnel.interfaces
@@ -4,6 +4,7 @@ iface tun0
 	tunnel-remote 203.0.113.1
 	tunnel-mode gre
 	tunnel-dev eth0
+	tunnel-ttl 255
 	address 203.0.113.10/30
 	gateway 203.0.113.9
 
diff --git a/tests/ifquery_test b/tests/ifquery_test
index 79f9341..281f1e2 100755
--- a/tests/ifquery_test
+++ b/tests/ifquery_test
@@ -168,6 +168,7 @@ tunnel_legacy_rewrite_body() {
 		-o match:"tunnel-local 203.0.113.2" \
 		-o match:"tunnel-remote 203.0.113.1" \
 		-o match:"tunnel-mode gre" \
+		-o match:"tunnel-ttl 255" \
 		ifquery -E $EXECUTORS_LINUX -i $FIXTURES/tunnel-legacy.interfaces tun0
 }
 
@@ -176,5 +177,6 @@ tunnel_ifupdown2_rewrite_body() {
 		-o match:"tunnel-local 203.0.113.2" \
 		-o match:"tunnel-remote 203.0.113.1" \
 		-o match:"tunnel-mode gre" \
+		-o match:"tunnel-ttl 255" \
 		ifquery -E $EXECUTORS_LINUX -i $FIXTURES/tunnel-ifupdown2.interfaces tun0
 }