Rendering json has encoded characters

Rails
1

hello all
i’m using rails3.0.10

def districts
    @names = Node.where("name like ?",

“%#{params[:term]}%”).limit(5).map(&:name)
respond_to do |format|
format.json {render :json => @names}
format.xml {render :xml => @names}
end
end

render xml get right names
but render json make the names is encoded

any help?

Thanks in advance