diff --git a/lib/ctt/listprojects.py b/lib/ctt/listprojects.py
index 9b28b7c..06043e6 100755
--- a/lib/ctt/listprojects.py
+++ b/lib/ctt/listprojects.py
@@ -34,7 +34,7 @@ class ListProjects(object):
 
 
     @classmethod
-    def print_projects():
+    def print_projects(cls):
         for project in cls.list_projects():
             print(project)