diff --git a/View/sediment_calibration_tab.py b/View/sediment_calibration_tab.py
index 73f8858..9ecaf6b 100644
--- a/View/sediment_calibration_tab.py
+++ b/View/sediment_calibration_tab.py
@@ -2419,7 +2419,7 @@ class SedimentCalibrationTab(QWidget):
                     * np.ones(
                         depth_data[data_id].shape[1]
                     ),
-                    -stg.depth_data[data_id][freq2_id, :]
+                    -depth_data[data_id][freq2_id, :]
                 )
 
                 self.fig_BS.canvas.draw_idle()