diff --git a/src/urh/controller/ProtocolLabelController.py b/src/urh/controller/ProtocolLabelController.py
index 8c37f5a8..9ca434a6 100644
--- a/src/urh/controller/ProtocolLabelController.py
+++ b/src/urh/controller/ProtocolLabelController.py
@@ -83,8 +83,13 @@ class ProtocolLabelController(QDialog):
         self.apply_decoding_changed.emit(lbl, self.model.message_type)
 
     def on_btn_remove_fieldtype_clicked(self):
-        for index in self.ui.listViewCustomFieldTypes.selectedIndexes():
-            self.custom_field_list_model.remove_field_type_at(index.row())
+        selected_indices = [indx.row() for indx in self.ui.listViewCustomFieldTypes.selectedIndexes()]
+
+        if len(selected_indices) == 0 and len(self.custom_field_list_model.custom_field_types) > 0:
+            selected_indices.append(len(self.custom_field_list_model.custom_field_types) - 1)
+
+        for index in selected_indices:
+            self.custom_field_list_model.remove_field_type_at(index)
 
     def on_btn_add_fieldtype_clicked(self):
         number = 1
diff --git a/src/urh/ui/ui_properties_dialog.py b/src/urh/ui/ui_properties_dialog.py
index 26d8639d..3d06163e 100644
--- a/src/urh/ui/ui_properties_dialog.py
+++ b/src/urh/ui/ui_properties_dialog.py
@@ -47,7 +47,7 @@ class Ui_DialogLabels(object):
         self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
         self.horizontalLayout_3.setObjectName("horizontalLayout_3")
         self.listViewCustomFieldTypes = CustomFieldListView(DialogLabels)
-        self.listViewCustomFieldTypes.setSelectionMode(QtWidgets.QAbstractItemView.MultiSelection)
+        self.listViewCustomFieldTypes.setSelectionMode(QtWidgets.QAbstractItemView.ExtendedSelection)
         self.listViewCustomFieldTypes.setObjectName("listViewCustomFieldTypes")
         self.horizontalLayout_3.addWidget(self.listViewCustomFieldTypes)
         self.verticalLayout_2 = QtWidgets.QVBoxLayout()
diff --git a/ui/properties_dialog.ui b/ui/properties_dialog.ui
index 6907416d..bd14a3c2 100644
--- a/ui/properties_dialog.ui
+++ b/ui/properties_dialog.ui
@@ -94,7 +94,7 @@
      <item>
       <widget class="CustomFieldListView" name="listViewCustomFieldTypes">
        <property name="selectionMode">
-        <enum>QAbstractItemView::MultiSelection</enum>
+        <enum>QAbstractItemView::ExtendedSelection</enum>
        </property>
       </widget>
      </item>
@@ -106,7 +106,8 @@
           <string>...</string>
          </property>
          <property name="icon">
-          <iconset theme="list-add"/>
+          <iconset theme="list-add">
+           <normaloff>.</normaloff>.</iconset>
          </property>
         </widget>
        </item>
@@ -119,7 +120,8 @@
           <string>...</string>
          </property>
          <property name="icon">
-          <iconset theme="list-remove"/>
+          <iconset theme="list-remove">
+           <normaloff>.</normaloff>.</iconset>
          </property>
         </widget>
        </item>