diff --git a/tests/utests/chameleon/protoc_plugins/sub.proto b/tests/utests/chameleon/protoc_plugins/sub.proto
new file mode 100644
index 0000000..d3f2462
--- /dev/null
+++ b/tests/utests/chameleon/protoc_plugins/sub.proto
@@ -0,0 +1,6 @@
+syntax = "proto2";
+package examples.sub;
+
+message StringMessage {
+	required string value = 1;
+}