diff --git a/tests/baz/1.0/IBaz.hal b/tests/baz/1.0/IBaz.hal
index 9a9e754..00fe568 100644
--- a/tests/baz/1.0/IBaz.hal
+++ b/tests/baz/1.0/IBaz.hal
@@ -70,6 +70,9 @@
 
     struct StructWithInterface {
         int32_t number;
+        int8_t[7] array;
+        string oneString;
+        vec<string> vectorOfStrings;
         IBase dummy;
     };
     oneway doThis(float param);