diff --git a/guiframe.py b/guiframe.py
index 5c07533..a57a86c 100644
--- a/guiframe.py
+++ b/guiframe.py
@@ -1743,10 +1743,21 @@ class GUIFrame(QWidget):
             
             for i in range (0,  self.sender().count()):
                 if i == new_idx:
-                    self.sender().tabBar().setTabTextColor(new_idx,
-                                                           QColor(_color))
+                    try:
+                        self.sender().tabBar().setTabTextColor(new_idx,
+                                                               QColor(_color))
+                    except AttributeError:
+                        #May be a QStackedWidget which does not have tabBar
+                        pass
+                    
                 else:
-                    self.sender().tabBar().setTabTextColor(i, QColor("black"))
+                    try:
+                        self.sender().tabBar().setTabTextColor(i,
+                                                               QColor("black"))
+                    except AttributeError:
+                        #May be a QStackedWidget which does not have tabBar
+                        pass     
+                    
             self.parent.input_parameters[key] = sender_tab
             
         qtab_widget = QTabWidget() if not stacked else QStackedWidget()