diff --git a/common/src/aaredaqlib/models.py b/common/src/aaredaqlib/models.py
index 18950147..6adef796 100644
--- a/common/src/aaredaqlib/models.py
+++ b/common/src/aaredaqlib/models.py
@@ -691,6 +691,7 @@ class BeamlineStatus(BaseModel):
     light: Annotated[float, Field(ge=0.0, le=100.0)]
     cryojet_K: float
     shutter_open: bool
+    exp_shutter_open: bool | None
     flux_ph_s: float
     sample_camera: SampleCameraSettings
     transmission: Annotated[float, Field(ge=0.0, le=1.0)] | None