diff --git a/src/x11/textctrl.cpp b/src/x11/textctrl.cpp
index 492d37e5df..5df5cc4e03 100644
--- a/src/x11/textctrl.cpp
+++ b/src/x11/textctrl.cpp
@@ -1790,7 +1790,6 @@ void wxTextCtrl::OnChar( wxKeyEvent &event )
     int size_x = 0;
     int size_y = 0;
     GetClientSize( &size_x, &size_y );
-    size_x /= m_charWidth;
     size_y /= m_lineHeight;
     size_y--;