diff --git a/tempest/api_schema/response/compute/v2_1/fixed_ips.py b/tempest/api_schema/response/compute/v2_1/fixed_ips.py
index 3586b70..229860e 100644
--- a/tempest/api_schema/response/compute/v2_1/fixed_ips.py
+++ b/tempest/api_schema/response/compute/v2_1/fixed_ips.py
@@ -36,7 +36,6 @@
     }
 }
 
-reserve_fixed_ip = {
-    'status_code': [202],
-    'response_body': {'type': 'string'}
+reserve_unreserve_fixed_ip = {
+    'status_code': [202]
 }
diff --git a/tempest/services/compute/json/fixed_ips_client.py b/tempest/services/compute/json/fixed_ips_client.py
index 23401c3..d826655 100644
--- a/tempest/services/compute/json/fixed_ips_client.py
+++ b/tempest/services/compute/json/fixed_ips_client.py
@@ -32,5 +32,5 @@
         """This reserves and unreserves fixed ips."""
         url = "os-fixed-ips/%s/action" % fixed_ip
         resp, body = self.post(url, json.dumps(kwargs))
-        self.validate_response(schema.reserve_fixed_ip, resp, body)
+        self.validate_response(schema.reserve_unreserve_fixed_ip, resp, body)
         return service_client.ResponseBody(resp)