diff --git a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
index 6083efda8..aff238cfc 100644
--- a/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
+++ b/luci-app-openmptcprouter/luasrc/controller/openmptcprouter.lua
@@ -672,7 +672,7 @@ function interfaces_status()
 		    if type(ipv6_result) == "table" and #ipv6_result > 0 then
 			    local ipv6_addr_test
 			    for k,v in ipairs(ipv6_result) do
-				    if v.RecursiveDnsServer then
+				    if v.RecursiveDnsServer and type(v.RecursiveDnsServer) ~= "table" then
 					    ipv6_addr_test = sys.exec('ip -6 addr | grep ' .. v.RecursiveDnsServer)
 				    end
 			    end