Index: django/core/management.py
===================================================================
--- django/core/management.py	(revision 3772)
+++ django/core/management.py	(working copy)
@@ -150,6 +150,9 @@
         if isinstance(f, models.ForeignKey):
             rel_field = f.rel.get_related_field()
             data_type = get_rel_data_type(rel_field)
+        elif isinstance(f, models.OneToOneField):
+            rel_field = f.rel.get_related_field()
+            data_type = get_rel_data_type(rel_field)
         else:
             rel_field = f
             data_type = f.get_internal_type()