diff --git a/lib/psycopg1.py b/lib/psycopg1.py
index 7a24c5f2..95b36bff 100644
--- a/lib/psycopg1.py
+++ b/lib/psycopg1.py
@@ -28,7 +28,7 @@ old code while porting to psycopg 2. Import it as follows::
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
 # License for more details.
 
-import _psycopg as _2psycopg
+import psycopg2._psycopg as _2psycopg
 from psycopg2.extensions import cursor as _2cursor
 from psycopg2.extensions import connection as _2connection