diff --git a/src/lib/test/adt-to-open-api-open-api.yml b/src/lib/test/adt-to-open-api-open-api.yml
index cd1b4ab..ddeeaaa 100644
--- a/src/lib/test/adt-to-open-api-open-api.yml
+++ b/src/lib/test/adt-to-open-api-open-api.yml
@@ -7,8 +7,11 @@ components:
           type: boolean
         dec:
           type: double
+        type:
+          type: string
       required:
         - bool
+        - type
       discriminator:
         propertyName: type
         mapping:
diff --git a/src/lib/test/adt-to-open-api-trust.yml b/src/lib/test/adt-to-open-api-trust.yml
index 785b900..f72f91e 100644
--- a/src/lib/test/adt-to-open-api-trust.yml
+++ b/src/lib/test/adt-to-open-api-trust.yml
@@ -7,6 +7,8 @@ defs:
       dec:
         type: dec
         opt: true
+      type:
+        type: str
     adt:
       var: type
       map: