diff --git a/zun/api/hooks.py b/zun/api/hooks.py
index 742534190..e15b631e0 100644
--- a/zun/api/hooks.py
+++ b/zun/api/hooks.py
@@ -110,13 +110,13 @@ class NoExceptionTracebackHook(hooks.PecanHook):
         if cfg.CONF.debug and json_body.get('faultcode') != 'Server':
             return
 
-        faultsting = json_body.get('faultstring')
+        title = json_body.get('title')
         traceback_marker = 'Traceback (most recent call last):'
-        if faultsting and (traceback_marker in faultsting):
+        if title and (traceback_marker in title):
             # Cut-off traceback.
-            faultsting = faultsting.split(traceback_marker, 1)[0]
+            title = title.split(traceback_marker, 1)[0]
             # Remove trailing newlines and spaces if any.
-            json_body['faultstring'] = faultsting.rstrip()
+            json_body['title'] = title.rstrip()
             # Replace the whole json. Cannot change original one beacause it's
             # generated on the fly.
             state.response.json = json_body
diff --git a/zun/api/middleware/parsable_error.py b/zun/api/middleware/parsable_error.py
index 22322bc30..1e02d4297 100644
--- a/zun/api/middleware/parsable_error.py
+++ b/zun/api/middleware/parsable_error.py
@@ -70,9 +70,6 @@ class ParsableErrorMiddleware(object):
                 if 'title' in err and 'description' in err:
                     title = err['title']
                     desc = err['description']
-                elif 'faultstring' in err:
-                    title = err['faultstring'].split('.', 1)[0]
-                    desc = err['faultstring']
                 else:
                     title = ''
                     desc = ''