diff --git a/apps/emqx_bridge/src/schema/emqx_bridge_v2_schema.erl b/apps/emqx_bridge/src/schema/emqx_bridge_v2_schema.erl
index 9903c75e8..8fa95369b 100644
--- a/apps/emqx_bridge/src/schema/emqx_bridge_v2_schema.erl
+++ b/apps/emqx_bridge/src/schema/emqx_bridge_v2_schema.erl
@@ -105,6 +105,8 @@ namespace() -> "bridges_v2".
 tags() ->
     [<<"Bridge V2">>].
 
+-dialyzer({nowarn_function, roots/0}).
+
 roots() ->
     case fields(bridges_v2) of
         [] -> [];
diff --git a/apps/emqx_connector/src/schema/emqx_connector_schema.erl b/apps/emqx_connector/src/schema/emqx_connector_schema.erl
index 2afa04ccf..eb71d88d0 100644
--- a/apps/emqx_connector/src/schema/emqx_connector_schema.erl
+++ b/apps/emqx_connector/src/schema/emqx_connector_schema.erl
@@ -254,6 +254,8 @@ namespace() -> "connector".
 tags() ->
     [<<"Connector">>].
 
+-dialyzer({nowarn_function, roots/0}).
+
 roots() ->
     case fields(connectors) of
         [] -> [];