diff --git a/watcher/decision_engine/strategy/strategies/basic_consolidation.py b/watcher/decision_engine/strategy/strategies/basic_consolidation.py
index 3044d10b9..9c591b4ba 100644
--- a/watcher/decision_engine/strategy/strategies/basic_consolidation.py
+++ b/watcher/decision_engine/strategy/strategies/basic_consolidation.py
@@ -149,8 +149,10 @@ class BasicConsolidation(base.ServerConsolidationBaseStrategy):
     def get_config_opts(cls):
         return [
             cfg.ListOpt(
-                "datasource",
-                help="Data source to use in order to query the needed metrics",
+                "datasources",
+                help="Datasources to use in order to query the needed metrics."
+                     " If one of strategy metric isn't available in the first"
+                     " datasource, the next datasource will be chosen.",
                 item_type=cfg.types.String(choices=['gnocchi', 'ceilometer',
                                                     'monasca']),
                 default=['gnocchi', 'ceilometer', 'monasca']),
diff --git a/watcher/decision_engine/strategy/strategies/noisy_neighbor.py b/watcher/decision_engine/strategy/strategies/noisy_neighbor.py
index 6fb50f3b4..8f10237ab 100644
--- a/watcher/decision_engine/strategy/strategies/noisy_neighbor.py
+++ b/watcher/decision_engine/strategy/strategies/noisy_neighbor.py
@@ -86,8 +86,10 @@ class NoisyNeighbor(base.NoisyNeighborBaseStrategy):
     def get_config_opts(cls):
         return [
             cfg.ListOpt(
-                "datasource",
-                help="Data source to use in order to query the needed metrics",
+                "datasources",
+                help="Datasources to use in order to query the needed metrics."
+                     " If one of strategy metric isn't available in the first"
+                     " datasource, the next datasource will be chosen.",
                 item_type=cfg.types.String(choices=['gnocchi', 'ceilometer',
                                                     'monasca']),
                 default=['gnocchi', 'ceilometer', 'monasca'])