diff --git a/activitysim/core/estimation.py b/activitysim/core/estimation.py
index d39490ebe..6e02aca76 100644
--- a/activitysim/core/estimation.py
+++ b/activitysim/core/estimation.py
@@ -220,7 +220,9 @@ def write_omnibus_table(self):
         if len(self.omnibus_tables) == 0:
             return
 
-        settings = config.read_model_settings(ESTIMATION_SETTINGS_FILE_NAME)
+        settings = self.state.filesystem.read_model_settings(
+            ESTIMATION_SETTINGS_FILE_NAME, mandatory=False
+        )
 
         edbs_to_skip = settings.get("SKIP_BUNDLE_WRITE_FOR", [])
         if self.bundle_name in edbs_to_skip: