diff --git a/tests/integration/test_plugins.py b/tests/integration/test_plugins.py
index 57257091d7..4998c5e120 100644
--- a/tests/integration/test_plugins.py
+++ b/tests/integration/test_plugins.py
@@ -178,7 +178,7 @@ async def test_plugins(ops_test: OpsTest) -> None:
 
         # Test tcn extension disabled.
         with pytest.raises(psycopg2.Error):
-            connection.cursor().execute(TABLEFUNC_EXTENSION_STATEMENT)
+            connection.cursor().execute(TCN_EXTENSION_STATEMENT)
 
         # Test tsm_system_rows extension disabled.
         with pytest.raises(psycopg2.Error):