diff --git a/earthdiagnostics/ocean/psi.py b/earthdiagnostics/ocean/psi.py
index 24d8b322f566277e3c2f433a43381e728eaff2c5..e1624b6a88a35e65d4fc8facc352f50c083b06b5 100644
--- a/earthdiagnostics/ocean/psi.py
+++ b/earthdiagnostics/ocean/psi.py
@@ -1,15 +1,13 @@
 # coding=utf-8
 import numpy as np
 
-import netCDF4
 
 import iris
 import iris.analysis
 import iris.coords
 import iris.util
-from bscearth.utils.log import Log
 
-from earthdiagnostics.diagnostic import Diagnostic, DiagnosticBasinListOption
+from earthdiagnostics.diagnostic import Diagnostic
 from earthdiagnostics.modelingrealm import ModelingRealms
 from earthdiagnostics.utils import Utils, TempFile
 
@@ -60,7 +58,7 @@ class Psi(Diagnostic):
         )
 
     def __str__(self):
-        return "PSI Startdate: {0} Member: {1} Chunk: {2} Basins: {3}".format(
+        return "PSI Startdate: {0} Member: {1} Chunk: {2}".format(
             self.startdate,
             self.member,
             self.chunk,
@@ -81,17 +79,11 @@ class Psi(Diagnostic):
         :type options: list[str]
         :return:
         """
-        options_available = (DiagnosticBasinListOption("basins", "global"),)
+        options_available = ()
         options = cls.process_options(options, options_available)
 
-        basins = options["basins"]
-        if not basins:
-            Log.error("Basins not recognized")
-            return ()
-
         masks = {}
-        basins.sort()
-        for basin in basins:
+        for basin in ('global', ):
             masks[basin] = Utils.get_mask(basin)
 
         job_list = list()
@@ -158,14 +150,11 @@ class Psi(Diagnostic):
         Utils.copy_variable(handler_source, handler_temp, lon_name, True, True)
         handler_temp.createDimension("region", len(result))
         handler_temp.createDimension("region_length", 50)
-        var_region = handler_temp.createVariable(
-            "region", "S1", ("region", "region_length")
-        )
         var = handler_temp.createVariable(
-            "vsftbarot", float, ("time", "j", "i", "region")
+            "vsftbarot", float, ("time", "j", "i",)
         )
         var.units = "m3/s"
-        var.coordinates = " ".join((lat_name, lon_name))
+        var.coordinates = " ".join((lat_name, lon_name,))
         var.missing_value = 1e20
         var.fill_value = 1e20
         var.valid_min = -300e6
@@ -173,9 +162,8 @@ class Psi(Diagnostic):
         var.long_name = "Barotropic_Stream_Function"
 
         for i, basin in enumerate(result):
-            var_region[i, ...] = netCDF4.stringtoarr(str(basin), 50)
             result[basin].mask = self.masks[basin] < 1
-            var[..., i] = result[basin]
+            var[...] = result[basin]
         handler_temp.close()
         self.psi.set_local_file(temp, diagnostic=self)
 
diff --git a/test/unit/ocean/test_psi.py b/test/unit/ocean/test_psi.py
index a4b5efdb2d8b82063d1d802eafa8235f284db847..c94ff3eaeba7de5aaeb7628a06084566f93703fd 100644
--- a/test/unit/ocean/test_psi.py
+++ b/test/unit/ocean/test_psi.py
@@ -33,27 +33,12 @@ class TestPsi(TestCase):
             Psi(self.data_manager, "20010101", 0, 1, {Basins().Global: None}),
         )
 
-        jobs = Psi.generate_jobs(self.diags, ["diagnostic", "atl"])
-        self.assertEqual(len(jobs), 2)
-        self.assertEqual(
-            jobs[0],
-            Psi(
-                self.data_manager, "20010101", 0, 0, {Basins().Atlantic: None}
-            ),
-        )
-        self.assertEqual(
-            jobs[1],
-            Psi(
-                self.data_manager, "20010101", 0, 1, {Basins().Atlantic: None}
-            ),
-        )
-
         with self.assertRaises(Exception):
-            Psi.generate_jobs(self.diags, ["diagnostic", "atl", "badoption"])
+            Psi.generate_jobs(self.diags, ["diagnostic", "extra"])
 
     def test_str(self):
         psi = Psi(self.data_manager, "20000101", 1, 1, {Basins().Global: None})
         self.assertEqual(
             str(psi),
-            "PSI Startdate: 20000101 Member: 1 Chunk: 1 Basins: Global",
+            "PSI Startdate: 20000101 Member: 1 Chunk: 1",
         )