diff --git a/autocomplete_multi_models/tests/test_business_process.py b/autocomplete_multi_models/tests/test_business_process.py
index 1518a47f7f3d60886bf4551a7c7ddd75b47ab03e..78f263f3faeeabe2ff451a692dc9ec98a81ca416 100644
--- a/autocomplete_multi_models/tests/test_business_process.py
+++ b/autocomplete_multi_models/tests/test_business_process.py
@@ -110,24 +110,31 @@ class AutoCompleteTestCase(TestCase):
 @override_settings(AUTOCOMPLETE_MIN_LENGTH=1)
 class MinLength1(test_helpers.ChangeAutoCompleteSettingsTestCase):
     def test_it(self):
-        business_process.add_text_to_index("a bb ccc ddd")
+        business_process.add_text_to_index("z bb ccc ddd")
         self.assertEqual(models.IndexedWord.objects.count(), 4)
 
 
 @override_settings(AUTOCOMPLETE_MIN_LENGTH=2)
 class MinLength2(test_helpers.ChangeAutoCompleteSettingsTestCase):
     def test_it(self):
-        business_process.add_text_to_index("a bb ccc ddd")
+        business_process.add_text_to_index("z bb ccc ddd")
         self.assertEqual(models.IndexedWord.objects.count(), 3)
 
 
 @override_settings(AUTOCOMPLETE_MIN_LENGTH=3)
 class MinLength3(test_helpers.ChangeAutoCompleteSettingsTestCase):
     def test_it(self):
-        business_process.add_text_to_index("a bb ccc ddd")
+        business_process.add_text_to_index("z bb ccc ddd")
         self.assertEqual(models.IndexedWord.objects.count(), 2)
 
 
+@override_settings(AUTOCOMPLETE_MIN_LENGTH=1)
+class BannedWord(test_helpers.ChangeAutoCompleteSettingsTestCase):
+    def test_it(self):
+        business_process.add_text_to_index("a A b c d")
+        self.assertEqual(models.IndexedWord.objects.count(), 3)
+
+
 @override_settings(AUTOCOMPLETE_PERSISTENT_VARIABLE_GETTER_SETTER=None)
 class NeedRebuildDefaultBehaviorTestCase(test_helpers.ChangeAutoCompleteSettingsTestCase):
     def test_it(self):