diff --git a/pep-0291.txt b/pep-0291.txt
index f6054588a..2049da8f9 100644
--- a/pep-0291.txt
+++ b/pep-0291.txt
@@ -59,10 +59,10 @@ Features to Avoid
           1.5.2    string methods, Unicode, list comprehensions, 
                    augmented assignment (eg, +=), zip(), import x as y,
                    dict.setdefault(), print >> f,
-		   calling f(*args, **kw), plus all features below
+                   calling f(*args, **kw), plus all features below
 
           2.0      nested scopes, rich comparisons,
-	           function attributes, plus all features below
+                   function attributes, plus all features below
 
           2.1      use of object or new-style classes, iterators, 
                    using generators, nested scopes, or //
@@ -70,12 +70,12 @@ Features to Avoid
                    plus all features below
 
           2.2      bool, True, False, basestring, enumerate(),
-	           {}.pop(), PendingDeprecationWarning,
-		   Universal Newlines, plus all features below
+                   {}.pop(), PendingDeprecationWarning,
+                   Universal Newlines, plus all features below
 
-	  2.3      generator expressions, multi-line imports,
-	           decorators, int/long unification, set/frozenset,
-		   reversed(), sorted(), "".rsplit()
+          2.3      generator expressions, multi-line imports,
+                   decorators, int/long unification, set/frozenset,
+                   reversed(), sorted(), "".rsplit()
 
           2.4      ???