diff --git a/contrib/tcn/Makefile b/contrib/tcn/Makefile
index f36e6beddd..6813289000 100644
--- a/contrib/tcn/Makefile
+++ b/contrib/tcn/Makefile
@@ -7,6 +7,7 @@ DATA = tcn--1.0.sql
 PGFILEDESC = "tcn - trigger function notifying listeners"
 
 ISOLATION = tcn
+ISOLATION_OPTS = --load-extension=tcn
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config
diff --git a/contrib/tcn/specs/tcn.spec b/contrib/tcn/specs/tcn.spec
index 8720398139..fb9e7305fc 100644
--- a/contrib/tcn/specs/tcn.spec
+++ b/contrib/tcn/specs/tcn.spec
@@ -7,7 +7,6 @@
 
 setup
 {
-  CREATE EXTENSION tcn;
   CREATE TABLE mytable (key int PRIMARY KEY, value text);
   CREATE TRIGGER tcntrig AFTER INSERT OR UPDATE OR DELETE ON mytable
     FOR EACH ROW EXECUTE FUNCTION triggered_change_notification(mychannel);