diff --git a/planetstack/observer/event_loop.py b/planetstack/observer/event_loop.py
index f71ca00..7ad3efc 100644
--- a/planetstack/observer/event_loop.py
+++ b/planetstack/observer/event_loop.py
@@ -190,8 +190,8 @@
 
     def check_class_dependency(self, step, failed_steps):
         for failed_step in failed_steps:
-            dependencies = self.model_dependency_graph.get(step.provides[0].__name__, [])
-            if (failed_step in dependencies):
+            step.dependencies = self.model_dependency_graph.get(step.provides[0].__name__, [])
+            if (failed_step in step.dependencies):
                 raise StepNotReady
 
     def run(self):