diff --git a/config_tempest/services/compute.py b/config_tempest/services/compute.py
index 52b3c68c..9f39e0be 100644
--- a/config_tempest/services/compute.py
+++ b/config_tempest/services/compute.py
@@ -30,12 +30,16 @@ class ComputeService(VersionedService):
 
     def set_default_tempest_options(self, conf):
         conf.set('compute-feature-enabled', 'console_output', 'True')
+        num_compute = self._get_number_of_hosts()
+        # set min_compute_nodes to enable migration tests in env
+        # with multiple compute nodes
+        conf.set('compute', 'min_compute_nodes', str(num_compute))
         # Resize only works if it has at least 2 compute nodes
         # or if nova has the option allow_resize_to_same_host
         # set to true. Unfortunately we can't get this info from
         # nova api, so we only set it when we know there's 2
         # compute nodes
-        if self._get_number_of_hosts() >= 2:
+        if num_compute >= 2:
             conf.set('compute-feature-enabled', 'resize', 'True')
         # set microversions
         m_versions = self.filter_api_microversions()
diff --git a/config_tempest/tests/services/test_compute.py b/config_tempest/tests/services/test_compute.py
index 9e4236ba..97be964e 100644
--- a/config_tempest/tests/services/test_compute.py
+++ b/config_tempest/tests/services/test_compute.py
@@ -43,6 +43,9 @@ class TestComputeService(BaseServiceTest):
         mock_get_number_of_hosts.return_value = 2
         conf = TempestConf()
         self.Service.set_default_tempest_options(conf)
+        self.assertEqual(
+            conf.get('compute',
+                     'min_compute_nodes'), '2')
         self.assertEqual(
             conf.get('compute-feature-enabled',
                      'resize'), 'True')