diff --git a/src/calng/JungfrauCorrection.py b/src/calng/JungfrauCorrection.py
index 4ef0fe34896ab289bd11e7b177c7ef2f47131ad5..9fc8eadca2438c167b130f746973ca82cfca978e 100644
--- a/src/calng/JungfrauCorrection.py
+++ b/src/calng/JungfrauCorrection.py
@@ -22,6 +22,7 @@ _pretend_pulse_table = np.arange(16, dtype=np.uint8)
 class JungfrauConstants(enum.Enum):
     Offset10Hz = enum.auto()
     BadPixelsDark10Hz = enum.auto()
+    BadPixelsFF10Hz = enum.auto()
     RelativeGain10Hz = enum.auto()
 
 
@@ -104,6 +105,11 @@ class JungfrauGpuRunner(base_gpu.BaseGpuRunner):
         if self.burst_mode:
             self.cell_table_gpu.set(cell_table)
 
+    def flush_buffers(self):
+        self.offset_map_gpu.fill(0)
+        self.rel_gain_map_gpu.fill(1)
+        self.bad_pixel_map_gpu.fill(0)
+
     def correct(self, flags):
         self.correction_kernel(
             self.full_grid,
@@ -130,6 +136,7 @@ class JungfrauCalcatFriend(calcat_utils.BaseCalcatFriend):
         self._constants_need_conditions = {
             JungfrauConstants.Offset10Hz: self.dark_condition,
             JungfrauConstants.BadPixelsDark10Hz: self.dark_condition,
+            JungfrauConstants.BadPixelsFF10Hz: self.dark_condition,
             JungfrauConstants.RelativeGain10Hz: self.dark_condition,
         }
 
@@ -397,9 +404,11 @@ class JungfrauCorrection(BaseCorrection):
             self.kernel_runner.rel_gain_map_gpu.set(constant_data.astype(np.float32))
             if not self.get("corrections.relGain.available"):
                 self.set("corrections.relGain.available", True)
-        elif constant is JungfrauConstants.BadPixelsDark10Hz:
+        elif constant in (
+                JungfrauConstants.BadPixelsDark10Hz, JungfrauConstants.BadPixelsFF10Hz
+        ):
             constant_data = np.transpose(constant_data, (2, 0, 1, 3))
-            self.kernel_runner.bad_pixel_map_gpu.set(constant_data)
+            self.kernel_runner.bad_pixel_map_gpu |= cupy.asarray(constant_data)
             if not self.get("corrections.badPixels.available"):
                 self.set("corrections.badPixels.available", True)