diff --git a/app/views/ontologies/browser/browse.html.haml b/app/views/ontologies/browser/browse.html.haml
index 974868aaf..7704140f2 100644
--- a/app/views/ontologies/browser/browse.html.haml
+++ b/app/views/ontologies/browser/browse.html.haml
@@ -40,7 +40,8 @@
             %p.browse-filters-title= t("ontologies.filters")
              
             %div.browse-filter
-              = switch_input(id:'filter-private', name:'private_only', checked: @show_private_only, label: t("ontologies.browser.show_private_ontology"))
+              - if session[:user]
+                = switch_input(id:'filter-private', name:'private_only', checked: @show_private_only, label: t("ontologies.browser.show_private_ontology"))
               = switch_input(id:'filter-views', name:'views', checked: @show_views, label: t("ontologies.browser.show_ontology_views"))
               = switch_input(id:'filter-retired', name:'retired',checked: @show_retired , label: t("ontologies.browser.show_retired_ontologies"))