diff --git a/tests/fixtures/stanza-merging.interfaces b/tests/fixtures/stanza-merging.interfaces
new file mode 100644
index 0000000..6327cbc
--- /dev/null
+++ b/tests/fixtures/stanza-merging.interfaces
@@ -0,0 +1,14 @@
+# cidr and without-cidr should be equivalent
+iface cidr
+	address 203.0.113.1/32
+
+iface cidr
+	address 203.0.113.2/24
+
+iface without-cidr
+	address 203.0.113.1
+	netmask 32
+
+iface without-cidr
+	address 203.0.113.2
+	netmask 24