diff --git a/View/signal_processing_tab.py b/View/signal_processing_tab.py
index e2f17ce..26be9ce 100644
--- a/View/signal_processing_tab.py
+++ b/View/signal_processing_tab.py
@@ -511,6 +511,7 @@ class SignalProcessingTab(QWidget):
             msgBox.exec()
 
         else:
+            self.combobox_acoustic_data_choice.blockSignals(True)
 
             self.combobox_acoustic_data_choice.clear()
             self.combobox_acoustic_data_choice.addItems(stg.filename_BS_raw_data)
@@ -535,6 +536,8 @@ class SignalProcessingTab(QWidget):
             self.compute_average_profile_tail()
             self.plot_averaged_profile_tail()
 
+            self.combobox_acoustic_data_choice.blockSignals(False)
+
     def activate_list_of_pre_processed_data(self):
         for i in range(self.combobox_acoustic_data_choice.count()):
             eval("self.lineEdit_list_pre_processed_data_" + str(i) + ".setDisabled(True)")