diff --git a/oslo/messaging/rpc/dispatcher.py b/oslo/messaging/rpc/dispatcher.py
index 424f7bd0f..4b4eeafc2 100644
--- a/oslo/messaging/rpc/dispatcher.py
+++ b/oslo/messaging/rpc/dispatcher.py
@@ -67,10 +67,13 @@ class NoSuchMethod(RPCDispatcherError, AttributeError):
 class UnsupportedVersion(RPCDispatcherError):
     "Raised if there is no endpoint which supports the requested version."
 
-    def __init__(self, version):
+    def __init__(self, version, method=None):
         msg = "Endpoint does not support RPC version %s" % version
+        if method:
+            msg = "%s. Attempted method: %s" % (msg, method)
         super(UnsupportedVersion, self).__init__(msg)
         self.version = version
+        self.method = method
 
 
 class RPCDispatcher(object):
@@ -183,4 +186,4 @@ class RPCDispatcher(object):
         if found_compatible:
             raise NoSuchMethod(method)
         else:
-            raise UnsupportedVersion(version)
+            raise UnsupportedVersion(version, method=method)
diff --git a/tests/rpc/test_dispatcher.py b/tests/rpc/test_dispatcher.py
index 0b24c6334..2f1fb4d5f 100644
--- a/tests/rpc/test_dispatcher.py
+++ b/tests/rpc/test_dispatcher.py
@@ -111,6 +111,8 @@ class TestDispatcher(test_utils.BaseTestCase):
                 elif isinstance(ex, messaging.UnsupportedVersion):
                     self.assertEqual(self.msg.get('version', '1.0'),
                                      ex.version)
+                    if ex.method:
+                        self.assertEqual(self.msg.get('method'), ex.method)
             else:
                 self.assertTrue(self.success, failure)
                 self.assertIsNone(failure)