diff --git a/ChangeLog b/ChangeLog
index f96d87d9..88c883af 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
 
 	* Preparing release 2.0.5.
 
+	* psycopg/psycopgmodule.c: fixed filling of connection errors
+	to include OperationalError.
+
 	* setup.py: removed pydatetime option from initialize_options
 	to make sure that the value in setup.cfg is used.
 
diff --git a/psycopg/psycopgmodule.c b/psycopg/psycopgmodule.c
index 0c36ba6b..426fb27a 100644
--- a/psycopg/psycopgmodule.c
+++ b/psycopg/psycopgmodule.c
@@ -118,6 +118,8 @@ _psyco_connect_fill_exc(connectionObject *conn)
     Py_INCREF(DataError);
     conn->exc_NotSupportedError = NotSupportedError;
     Py_INCREF(NotSupportedError);
+    conn->exc_OperationalError = OperationalError;
+    Py_INCREF(OperationalError);
 }
 
 static PyObject *