diff --git a/pybossa/view/projects.py b/pybossa/view/projects.py
index 6563c7975..c872df340 100644
--- a/pybossa/view/projects.py
+++ b/pybossa/view/projects.py
@@ -566,7 +566,7 @@ def is_admin_or_owner(project):
 def upload_task_guidelines_image(short_name):
     error = False
     return_code = 200
-    project = project_by_shortname(short_name)
+    project, owner, ps = project_by_shortname(short_name)
 
     imgurls = []
     if is_editor_disabled():