diff --git a/luasrc/model/cbi/dockerman/overview.lua b/luasrc/model/cbi/dockerman/overview.lua
index 3bd4a6f..5a1f16c 100644
--- a/luasrc/model/cbi/dockerman/overview.lua
+++ b/luasrc/model/cbi/dockerman/overview.lua
@@ -116,7 +116,7 @@ if not lost_state then
 	end
 
 	docker_info_table['8IndexServerAddress']._value = docker_info.body.IndexServerAddress
-	for i, v in ipairs(docker_info.body.RegistryConfig.Mirrors) do
+	for i, v in ipairs(docker_info.body.RegistryConfig.Mirrors or {}) do
 		docker_info_table['9RegistryMirrors']._value = docker_info_table['9RegistryMirrors']._value == "-" and v or (docker_info_table['9RegistryMirrors']._value .. ", " .. v)
 	end