diff --git a/View/acoustic_data_tab.py b/View/acoustic_data_tab.py
index 2c73c1c..fe1fc57 100644
--- a/View/acoustic_data_tab.py
+++ b/View/acoustic_data_tab.py
@@ -41,7 +41,7 @@ from PyQt5.QtWidgets import (
     QPushButton, QComboBox, QLineEdit, QLabel,
     QGridLayout, QTableView, QSpacerItem, QSizePolicy,
     QFileDialog, QMessageBox, QScrollArea,
-    QSlider, QMenu, QCheckBox
+    QSlider, QMenu, QCheckBox, QAbstractItemView
 )
 from PyQt5.QtGui import QPixmap, QIcon
 from PyQt5.QtCore import (
@@ -161,6 +161,7 @@ class AcousticDataTab(QWidget):
         self.gridLayout_groupbox_acoustic_file.addWidget(self.clearBtn, 0, 4, 1, 1)
 
         self.fileListWidget = FileListWidget()
+        self.fileListWidget.setSelectionMode(QAbstractItemView.SingleSelection)
         self.gridLayout_groupbox_acoustic_file.addWidget(self.fileListWidget, 1, 0, 1, 5)
 
         # ++++++++++++++++++++++++++++++++++++++