diff --git a/rattail/db/extension/model.py b/rattail/db/extension/model.py
index 7f43e2f0c28566aa15188819e19d384fc1b5020c..2026a2e04dfa0740d49062f00738689f1fb7f1ee 100644
--- a/rattail/db/extension/model.py
+++ b/rattail/db/extension/model.py
@@ -42,7 +42,7 @@ from edbob.sqlalchemy import getset_factory
 
 from rattail import sil
 from rattail import batches
-from rattail.gpc import GPCType
+from rattail.sqlalchemy import GPCType
 
 
 __all__ = ['Department', 'Subdepartment', 'Brand', 'Category', 'Vendor',
diff --git a/rattail/gpc.py b/rattail/gpc.py
index f82625ce1e80450c3fe53b9dc824883bd224d39b..13e1d2654074c78cf86fce904a86f7e323ffd840 100644
--- a/rattail/gpc.py
+++ b/rattail/gpc.py
@@ -26,8 +26,6 @@
 ``rattail.gpc`` -- Global Product Code
 """
 
-from sqlalchemy import types
-
 from rattail import barcodes
 
 
@@ -89,21 +87,3 @@ class GPC(object):
 
     def __unicode__(self):
         return u'%014d' % self.value
-
-
-class GPCType(types.TypeDecorator):
-    """
-    SQLAlchemy type engine for GPC data.
-    """
-
-    impl = types.BigInteger
-
-    def process_bind_param(self, value, dialect):
-        if value is None:
-            return None
-        return int(value)
-
-    def process_result_value(self, value, dialect):
-        if value is None:
-            return None
-        return GPC(value)
diff --git a/rattail/sil/sqlalchemy.py b/rattail/sil/sqlalchemy.py
index ffe61f1b69180bd44602ea15b325ab18d07a6ae3..3171694ef1c1ffc621c4e3e73b9cc17c6fcdbc87 100644
--- a/rattail/sil/sqlalchemy.py
+++ b/rattail/sil/sqlalchemy.py
@@ -32,7 +32,7 @@ import re
 
 from sqlalchemy import types
 
-from rattail.gpc import GPCType
+from rattail.sqlalchemy import GPCType
 
 
 __all__ = ['get_sqlalchemy_type']
diff --git a/rattail/sqlalchemy.py b/rattail/sqlalchemy.py
new file mode 100644
index 0000000000000000000000000000000000000000..11fb6f538ff6f392ac21676f4a0991f5b042279d
--- /dev/null
+++ b/rattail/sqlalchemy.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+# -*- coding: utf-8  -*-
+################################################################################
+#
+#  Rattail -- Retail Software Framework
+#  Copyright © 2010-2012 Lance Edgar
+#
+#  This file is part of Rattail.
+#
+#  Rattail is free software: you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free
+#  Software Foundation, either version 3 of the License, or (at your option)
+#  any later version.
+#
+#  Rattail is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+#  FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for
+#  more details.
+#
+#  You should have received a copy of the GNU Affero General Public License
+#  along with Rattail.  If not, see <http://www.gnu.org/licenses/>.
+#
+################################################################################
+
+"""
+``rattail.sqlalchemy`` -- SQLAlchemy Stuff
+"""
+
+from __future__ import absolute_import
+
+from sqlalchemy import types
+
+import rattail
+
+
+class GPCType(types.TypeDecorator):
+    """
+    SQLAlchemy type engine for GPC data.
+    """
+
+    impl = types.BigInteger
+
+    def process_bind_param(self, value, dialect):
+        if value is None:
+            return None
+        return int(value)
+
+    def process_result_value(self, value, dialect):
+        if value is None:
+            return None
+        return rattail.GPC(value)