Merge "Fix type of value in error middleware response header"

1 files changed, 1 insertions, 1 deletions

diff --git a/ironic/api/middleware/parsable_error.py b/ironic/api/middleware/parsable_error.py
index 1b86e14ff..42e2d6875 100644
--- a/ironic/api/middleware/parsable_error.py
+++ b/ironic/api/middleware/parsable_error.py
@@ -85,7 +85,7 @@ class ParsableErrorMiddleware(object):
             else:
                 body = [json.dumps({'error_message': '\n'.join(app_iter)})]
                 state['headers'].append(('Content-Type', 'application/json'))
-            state['headers'].append(('Content-Length', len(body[0])))
+            state['headers'].append(('Content-Length', str(len(body[0]))))
         else:
             body = app_iter
         return body