diff --git a/library/my_calendar_sync.py b/library/my_calendar_sync.py
index 6954d97..24e7dae 100644
--- a/library/my_calendar_sync.py
+++ b/library/my_calendar_sync.py
@@ -55,8 +55,8 @@ def run_module():
         source_user=dict(type='str', required=False, default=None),
         source_password=dict(type='str', required=False, no_log=True, default=None),
         target_url=dict(type='str', required=True),
-        target_user=dict(type='str', required=True),
-        target_password=dict(type='str', required=True, no_log=True)
+        target_user=dict(type='str', required=False, default=None),
+        target_password=dict(type='str', required=False, no_log=True, default=None)
     )
 
     result = dict(changed=False)