diff --git a/tests/fixtures/static-eth0-ptp.interfaces b/tests/fixtures/static-eth0-ptp.interfaces
index c9b5c77..e6a3f53 100644
--- a/tests/fixtures/static-eth0-ptp.interfaces
+++ b/tests/fixtures/static-eth0-ptp.interfaces
@@ -4,4 +4,4 @@ iface eth0
 	pointopoint 192.0.2.1
 	gateway 192.0.2.1
 	address 2001:db8:1000:2::2/64
-        gateway 2001:db8:1000:2::1
+	gateway 2001:db8:1000:2::1