diff --git a/fuelweb_test/tests/test_custom_hostname.py b/fuelweb_test/tests/test_custom_hostname.py
index 62424185f..c78632ec8 100644
--- a/fuelweb_test/tests/test_custom_hostname.py
+++ b/fuelweb_test/tests/test_custom_hostname.py
@@ -14,7 +14,7 @@
 from random import randrange
 from re import match
 
-from keystoneauth1.exceptions import BadRequest
+from keystoneauth1.exceptions import BadRequest, Conflict
 from proboscis.asserts import assert_equal
 from proboscis.asserts import assert_raises
 from proboscis.asserts import assert_true
@@ -233,12 +233,14 @@ class CustomHostname(TestBasic):
         node = self.fuel_web.client.list_nodes()[0]
         self.fuel_web.client.set_hostname(node['id'], custom_hostname)
 
-        # Try to change the hostname of the provisioned node
+        # Try to set duplicate hostname for another node
+        node = self.fuel_web.client.list_nodes()[1]
         assert_raises(
-            BadRequest,
+            Conflict,
             self.fuel_web.client.set_hostname,
-            node,
-            custom_hostname)
+            node["id"],
+            custom_hostname
+        )
 
         self.env.make_snapshot("set_duplicate_hostname")