diff --git a/tom_observations/models.py b/tom_observations/models.py
index ce691fb55..6976124e4 100644
--- a/tom_observations/models.py
+++ b/tom_observations/models.py
@@ -82,7 +82,7 @@ def url(self):
 
     def update_status(self):
         facility = get_service_class(self.facility)
-        facility().update_observation_status(self.id)
+        facility().update_observation_status(self.observation_id)
 
     def save_data(self):
         facility = get_service_class(self.facility)