I have a 96 honda accord lx 2.2L I'm having a leaking problem?

The housing that my upper radiator hosee connects too is leaking idk if there is a gasket that is suppose to go there because I took it off to replace the thermostat but the thermostat is in the housing that the lower radiator hose connects too is there a gasket to the housing that the upper radiator connects too it didn't leak until I took it off let me know if there's a certain name for that housing thank you (:

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