diff --git a/django/contrib/formtools/utils.py b/django/contrib/formtools/utils.py
index 1f5beb153d..a357255522 100644
--- a/django/contrib/formtools/utils.py
+++ b/django/contrib/formtools/utils.py
@@ -2,27 +2,27 @@ try:
     import cPickle as pickle
 except ImportError:
     import pickle
-    
+
 from django.conf import settings
 from django.utils.hashcompat import md5_constructor
 from django.forms import BooleanField
 
 def security_hash(request, form, *args):
-        """
-        Calculates a security hash for the given Form instance.
+    """
+    Calculates a security hash for the given Form instance.
 
-        This creates a list of the form field names/values in a deterministic
-        order, pickles the result with the SECRET_KEY setting, then takes an md5
-        hash of that.
-        """
-        
-        data = [(bf.name, bf.field.clean(bf.data) or '') for bf in form]
-        data.extend(args)
-        data.append(settings.SECRET_KEY)
-        
-        # Use HIGHEST_PROTOCOL because it's the most efficient. It requires
-        # Python 2.3, but Django requires 2.3 anyway, so that's OK.
-        pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
-        
-        return md5_constructor(pickled).hexdigest()
+    This creates a list of the form field names/values in a deterministic
+    order, pickles the result with the SECRET_KEY setting, then takes an md5
+    hash of that.
+    """
+
+    data = [(bf.name, bf.field.clean(bf.data) or '') for bf in form]
+    data.extend(args)
+    data.append(settings.SECRET_KEY)
+
+    # Use HIGHEST_PROTOCOL because it's the most efficient. It requires
+    # Python 2.3, but Django requires 2.3 anyway, so that's OK.
+    pickled = pickle.dumps(data, pickle.HIGHEST_PROTOCOL)
+
+    return md5_constructor(pickled).hexdigest()