diff --git a/dbt_core_integration.py b/dbt_core_integration.py
index 0feff532f..5e86636fd 100644
--- a/dbt_core_integration.py
+++ b/dbt_core_integration.py
@@ -548,6 +548,7 @@ def safe_parse_project(self) -> None:
                     manifest = Manifest.from_writable_manifest(writable_manifest)
                     self.dbt.merge_from_artifact(
                         other=manifest,
+                        favor_state=self.favor_state,
                     )
                 else:
                     with open(self.defer_to_prod_manifest_path) as f: