diff --git a/django/contrib/localflavor/cl/forms.py b/django/contrib/localflavor/cl/forms.py
index 48219e88af..23a2209a10 100644
--- a/django/contrib/localflavor/cl/forms.py
+++ b/django/contrib/localflavor/cl/forms.py
@@ -74,7 +74,7 @@ class CLRutField(RegexField):
         tuple.
         """
         rut = smart_unicode(rut).replace(' ', '').replace('.', '').replace('-', '')
-        return rut[:-1], rut[-1]
+        return rut[:-1], rut[-1].upper()
 
     def _format(self, code, verifier=None):
         """
diff --git a/tests/regressiontests/forms/localflavor/cl.py b/tests/regressiontests/forms/localflavor/cl.py
index 15b8c7b285..b2b4562a53 100644
--- a/tests/regressiontests/forms/localflavor/cl.py
+++ b/tests/regressiontests/forms/localflavor/cl.py
@@ -36,6 +36,7 @@ class CLLocalFlavorTests(LocalFlavorTestCase):
             '78.412.790-7': '78.412.790-7',
             '8.334.6043': '8.334.604-3',
             '76793310-K': '76.793.310-K',
+            '76793310-k': '76.793.310-K',
         }
         invalid = {
             '11.111.111-0': error_invalid,