diff --git a/debye_bec/devices/pilatus/pilatus.py b/debye_bec/devices/pilatus/pilatus.py
index 2e58a48..8b22f92 100644
--- a/debye_bec/devices/pilatus/pilatus.py
+++ b/debye_bec/devices/pilatus/pilatus.py
@@ -92,6 +92,7 @@ class Pilatus(PSIDeviceBase, ADBase):
 
     cam = Cpt(PilatusDetectorCam, "cam1:")
     hdf = Cpt(HDF5Plugin, "HDF1:")
+    filter_number = Cpt(EpicsSignal, "FileNumber", kind=Kind.omitted, doc="File number for ramdisk")
     trigger_shot = Cpt(
         EpicsSignal,
         read_pv="X01DA-OP-MO1:BRAGG:xrd_trig_req",
@@ -211,6 +212,7 @@ class Pilatus(PSIDeviceBase, ADBase):
         self.cam.num_images.put(n_images)
         self.cam.acquire_time.put(detector_exp_time)
         self.cam.acquire_period.put(PILATUS_ACQUIRE_TIME)
+        self.filter_number.put(0)
         # HDF5 settings
         logger.debug(f"Setting HDF5 file path to {file_path} and file name to {file_name}")
         self.hdf.file_path.put(file_path)