diff --git a/djangosphinx/models.py b/djangosphinx/models.py
index 5812ba1..f1984d9 100644
--- a/djangosphinx/models.py
+++ b/djangosphinx/models.py
@@ -470,7 +470,7 @@ def _handle_filters(filter_list, exclude=False):
                                 value -= (1.0/MAX_INT)
                             else:
                                 value -= 1
-                        _max = -MAX_INT
+                        _max = 0
                         if is_float:
                             _max = float(_max)
                         args = (name, _max, value, exclude)