diff --git a/modules/swagger-codegen/src/main/resources/python/rest.mustache b/modules/swagger-codegen/src/main/resources/python/rest.mustache
index bb3747021f5..a2e70b6ec7c 100644
--- a/modules/swagger-codegen/src/main/resources/python/rest.mustache
+++ b/modules/swagger-codegen/src/main/resources/python/rest.mustache
@@ -121,7 +121,7 @@ class RESTClientObject(object):
             if method in ['POST', 'PUT', 'PATCH', 'OPTIONS', 'DELETE']:
                 if query_params:
                     url += '?' + urlencode(query_params)
-                if headers['Content-Type'].find('+json') != -1:
+                if headers['Content-Type'].find('json') != -1:
                     request_body = None
                     if body:
                         request_body = json.dumps(body)