diff --git a/django/db/backends/sqlite3/base.py b/django/db/backends/sqlite3/base.py
index 15b0e983ad..8f24332fb3 100644
--- a/django/db/backends/sqlite3/base.py
+++ b/django/db/backends/sqlite3/base.py
@@ -187,7 +187,7 @@ def _sqlite_extract(lookup_type, dt):
         dt = util.typecast_timestamp(dt)
     except (ValueError, TypeError):
         return None
-    return unicode(getattr(dt, lookup_type))
+    return getattr(dt, lookup_type)
 
 def _sqlite_date_trunc(lookup_type, dt):
     try:
diff --git a/django/db/models/fields/__init__.py b/django/db/models/fields/__init__.py
index 7ed497cb09..7f823bb546 100644
--- a/django/db/models/fields/__init__.py
+++ b/django/db/models/fields/__init__.py
@@ -494,7 +494,7 @@ class DateField(Field):
         # For "__month" and "__day" lookups, convert the value to a string so
         # the database backend always sees a consistent type.
         if lookup_type in ('month', 'day'):
-            return [force_unicode(value)]
+            return [int(value)]
         return super(DateField, self).get_db_prep_lookup(lookup_type, value)
 
     def get_db_prep_value(self, value):