diff --git a/pyolib/_wxwidgets.py b/pyolib/_wxwidgets.py
index 2bca35038..1527014fb 100644
--- a/pyolib/_wxwidgets.py
+++ b/pyolib/_wxwidgets.py
@@ -3010,7 +3010,7 @@ def __init__(self, parent=None, nchnls=2, startf=None, stopf=None,
             tw, th = self.GetTextExtent("|")
             self.text = wx.TextCtrl(panel, -1, "", size=(202, th+8), style=wx.TE_PROCESS_ENTER)
             self.text.Bind(wx.EVT_TEXT_ENTER, self.getText)
-            self.text.Bind(wx.EVT_CHAR, self.onChar)
+            self.text.Bind(wx.EVT_KEY_DOWN, self.onChar)
             box.Add(self.text, 0, wx.LEFT | wx.RIGHT | wx.EXPAND, 5)
 
         box.AddSpacer(10)