diff --git a/src/calibre/db/backend.py b/src/calibre/db/backend.py
index 34629752da..0eb4eb1aa0 100644
--- a/src/calibre/db/backend.py
+++ b/src/calibre/db/backend.py
@@ -988,7 +988,7 @@ class DB(object):
         uv = int(self.user_version)
 
         if sql is None:
-            from apsw_shell import Shell
+            from calibre.utils.apsw_shell import Shell
             callback(_('Dumping database to SQL') + '...')
             buf = StringIO()
             shell = Shell(db=self.conn, stdout=buf)
diff --git a/src/apsw_shell.py b/src/calibre/utils/apsw_shell.py
similarity index 100%
rename from src/apsw_shell.py
rename to src/calibre/utils/apsw_shell.py