diff --git a/nova/scheduler/filters/isolated_hosts_filter.py b/nova/scheduler/filters/isolated_hosts_filter.py
index 12f533a59..6caaf5d4c 100644
--- a/nova/scheduler/filters/isolated_hosts_filter.py
+++ b/nova/scheduler/filters/isolated_hosts_filter.py
@@ -36,7 +36,7 @@ CONF.register_opts(isolated_opts)
 class IsolatedHostsFilter(filters.BaseHostFilter):
     """Keep specified images to selected hosts."""
 
-   # The configurtaion values do not change within a request
+    # The configuration values do not change within a request
     run_filter_once_per_request = True
 
     def host_passes(self, host_state, filter_properties):