diff --git a/src/nqrduck_measurement/controller.py b/src/nqrduck_measurement/controller.py
index b07a48c..776cbbe 100644
--- a/src/nqrduck_measurement/controller.py
+++ b/src/nqrduck_measurement/controller.py
@@ -6,7 +6,6 @@ import numpy as np
 from decimal import Decimal
 from PyQt6.QtCore import pyqtSlot, pyqtSignal
 from PyQt6.QtWidgets import QApplication
-from nqrduck_pulseprogrammer.view import OptionsDialog
 from nqrduck_spectrometer.pulsesequence import PulseSequence
 from .signalprocessing_options import Apodization
 from nqrduck.module.module_controller import ModuleController
@@ -223,7 +222,7 @@ class MeasurementController(ModuleController):
 
         apodized_measurement = dialog.apodization(function)
 
-        dialog = None
+        dialog.deleteLater()
 
         self.module.model.displayed_measurement = apodized_measurement
         self.module.model.add_measurement(apodized_measurement)
diff --git a/src/nqrduck_measurement/signalprocessing_options.py b/src/nqrduck_measurement/signalprocessing_options.py
index cb9e365..5746fdb 100644
--- a/src/nqrduck_measurement/signalprocessing_options.py
+++ b/src/nqrduck_measurement/signalprocessing_options.py
@@ -29,9 +29,6 @@ class Apodization(DuckFormBuilder):
 
     This parameter is used to apply apodization functions to the signal.
     The apodization functions are used to reduce the noise in the signal.
-
-    Attributes:
-        APODIZATION_FUNCTIONS (str): The name of the apodization functions option.
     """
 
     def __init__(self, measurement: Measurement, parent=None) -> None:
@@ -94,4 +91,3 @@ class Apodization(DuckFormBuilder):
         )
 
         return apodized_measurement
-