diff --git a/tacker/api/validation/parameter_types.py b/tacker/api/validation/parameter_types.py
index 42481385b..8a28bdab2 100644
--- a/tacker/api/validation/parameter_types.py
+++ b/tacker/api/validation/parameter_types.py
@@ -123,7 +123,8 @@ keyvalue_pairs = {
                 {'type': 'string', 'maxLength': 1024},
                 {'type': 'object'},
                 {'type': 'null'},
-                {'type': 'boolean'}
+                {'type': 'boolean'},
+                {'type': 'number'}
             ]
         }
     },
diff --git a/tacker/tests/unit/vnflcm/test_controller.py b/tacker/tests/unit/vnflcm/test_controller.py
index 0d92248ac..ba3eed831 100644
--- a/tacker/tests/unit/vnflcm/test_controller.py
+++ b/tacker/tests/unit/vnflcm/test_controller.py
@@ -596,6 +596,7 @@ class TestController(base.TestCase):
                 status='INACTIVE')
 
         body = {"flavourId": "simple"}
+        body.update({"additionalParams": {"foo_number": 12}})
         req = fake_request.HTTPRequest.blank(
             '/vnf_instances/%s/instantiate' % uuidsentinel.vnf_instance_id)
         req.body = jsonutils.dump_as_bytes(body)