diff --git a/src/wizard/controller/frmDataConfigPanel.py b/src/wizard/controller/frmDataConfigPanel.py
index 93145d4..93ed4a4 100644
--- a/src/wizard/controller/frmDataConfigPanel.py
+++ b/src/wizard/controller/frmDataConfigPanel.py
@@ -144,8 +144,7 @@ def setInputGrid(self, data):
         # Assign the table to the grid control.
         self.m_listCtrl1.setTable(base)
 
-        for column in range(self.m_listCtrl1.GetNumberCols()):
-            self.m_listCtrl1.AutoSizeColLabelSize(column)
+        self.m_listCtrl1.AutoSizeColumns()
 
     def setInputMappingList(self, existingData, read):
         """