diff --git a/Ccs/editor.py b/Ccs/editor.py
index b14798b86fe8e2daa42fc2833b6e5799d658ca28..77e85ebaedac9e5cefe1a76210edc414e4410a2b 100644
--- a/Ccs/editor.py
+++ b/Ccs/editor.py
@@ -1278,7 +1278,7 @@ class CcsEditor(Gtk.Window):
 
         textview.set_wrap_mode(Gtk.WrapMode.WORD)
 
-        # textview.set_properties(insert_spaces_instead_of_tabs=True)
+        textview.set_properties(insert_spaces_instead_of_tabs=True)
         textview.set_properties(show_line_numbers=True)
         textview.set_properties(auto_indent=True)
         # textview.set_properties(highlight_current_line = True)