diff --git a/main/webapp/modules/core/scripts/facets/list-facet.js b/main/webapp/modules/core/scripts/facets/list-facet.js
index 33b1b3094..a02c57650 100644
--- a/main/webapp/modules/core/scripts/facets/list-facet.js
+++ b/main/webapp/modules/core/scripts/facets/list-facet.js
@@ -725,7 +725,7 @@ ListFacet.prototype._setChoiceCountLimit = function(choiceCount) {
         "command/core/set-preference",
         {
           name : "ui.browsing.listFacet.limit",
-          value : n
+          value : JSON.stringify(n)
         },
         function(o) {
           if (o.code === "ok") {
diff --git a/main/webapp/modules/core/scripts/index/lang-settings-ui.js b/main/webapp/modules/core/scripts/index/lang-settings-ui.js
index b30f5a9d9..b322ba825 100644
--- a/main/webapp/modules/core/scripts/index/lang-settings-ui.js
+++ b/main/webapp/modules/core/scripts/index/lang-settings-ui.js
@@ -34,7 +34,7 @@ Refine.SetLanguageUI = function(elmt) {
 			async : false,
 			data : {
 			  name : "userLang",
-				value : $("#langDD option:selected").val()
+				value : JSON.stringify($("#langDD option:selected").val())
 			},
 			success : function(data) {
 				alert($.i18n('core-index-lang/page-reload'));