diff --git a/sohstationviewer/view/ui/main_ui.py b/sohstationviewer/view/ui/main_ui.py
index bf796eae77be982c8bf8213c6befabc042384ad7..1784637c5551f0f7331414e591d1c7abd1143e9f 100755
--- a/sohstationviewer/view/ui/main_ui.py
+++ b/sohstationviewer/view/ui/main_ui.py
@@ -375,7 +375,7 @@ class UIMainWindow(object):
 
         left_widget = QWidget(self.central_widget)
         h_layout.addWidget(left_widget)
-        left_widget.setFixedWidth(240)
+        left_widget.setFixedWidth(255)
         # left_widget.setMinimumHeight(650)
         left_layout = QVBoxLayout()
         left_layout.setContentsMargins(0, 0, 0, 0)
@@ -526,9 +526,10 @@ class UIMainWindow(object):
 
         mass_pos_layout = QHBoxLayout()
         left_layout.addLayout(mass_pos_layout)
-        mass_pos_layout.addWidget(QLabel('Mass Pos '))
+        mass_pos_layout.addWidget(QLabel('MassPos '))
         self.mass_pos_123zne_check_box = QCheckBox(
-            '123/ZNE', self.central_widget)
+            '123/ZNE/ABC', self.central_widget)
+        self.mass_pos_123zne_check_box.setMinimumWidth(120)
         mass_pos_layout.addWidget(self.mass_pos_123zne_check_box)
         self.mass_pos_456uvw_check_box = QCheckBox(
             '456/UVW', self.central_widget)