diff --git a/src/aeros_simulation/schema.py b/src/aeros_simulation/schema.py
index e433bfd..0629264 100644
--- a/src/aeros_simulation/schema.py
+++ b/src/aeros_simulation/schema.py
@@ -128,7 +128,7 @@ class YearlySimulationInput(DefultBase):
     
     
 class SimulationQueryModel(CommonParams):
-    status: Optional[str] = Field()
+    status: Optional[str] = Field(None)
     
     
 class SimulationCalcResultQuery(DefultBase):