diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 09dd409..624a99e 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -457,7 +457,7 @@
             else:
                 msg = ('When validation.connect_method equals floating, '
                        'validation_resources cannot be None')
-                raise exceptions.InvalidParam(invalid_param=msg)
+                raise lib_exc.InvalidParam(invalid_param=msg)
         elif CONF.validation.connect_method == 'fixed':
             addresses = server['addresses'][CONF.validation.network_for_ssh]
             for address in addresses: