1 files changed, 1 insertions, 1 deletions
diff --git a/main/models.py b/main/models.py
index 57e9650e..eae55c8b 100644
--- a/main/models.py
+++ b/main/models.py
@@ -15,7 +15,7 @@ class PositiveBigIntegerField(models.BigIntegerField):
     _south_introspects = True
 
     def get_internal_type(self):
-        return "PositiveBigIntegerField"
+        return "BigIntegerField"
 
     def formfield(self, **kwargs):
         defaults = {'min_value': 0}