diff --git a/koha-tmpl/intranet-tmpl/prog/en/js/ajax.js b/koha-tmpl/intranet-tmpl/prog/en/js/ajax.js
index 968334bc88..c9a45c0bfd 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/js/ajax.js
+++ b/koha-tmpl/intranet-tmpl/prog/en/js/ajax.js
@@ -15,20 +15,20 @@ KOHA.AJAX = {
         KOHA.xhr = xhr;
         if ( !xhr.getResponseHeader( 'content-type' ).match( 'application/json' ) ) {
             // Something really failed
-            humanMsg.displayAlert( _("Internal Server Error, please reload the page") );
+            humanMsg.displayAlert( MSG_INTERNAL_SERVER_ERROR );
             return;
         }
 
         var error = eval( '(' + xhr.responseText + ')' );
 
         if ( error.type == 'auth' ) {
-            humanMsg.displayMsg( _("You need to log in again, your session has timed out") );
+            humanMsg.displayMsg( MSG_SESSION_TIMED_OUT );
         }
 
         if ( callback ) {
             callback( error );
         } else {
-            humanMsg.displayAlert( _("Error; your data might not have been saved") );
+            humanMsg.displayAlert( MSG_DATA_NOT_SAVED );
         }
     },
     MarkRunning: function ( selector, text ) {
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences.tt
index 04ebe760cf..82c93af464 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences.tt
@@ -23,9 +23,9 @@
     var MSG_CLICK_TO_EXPAND = _("Click to expand this section");
     var MSG_CLICK_TO_COLLAPSE = _("Click to collapse this section");
     var MSG_INTERNAL_SERVER_ERROR = _( "Internal Server Error, please reload the page" );
-    var MSG_SESSION_TIMED_OUT = _( 'You need to log in again, your session has timed out' );
-    var MSG_DATA_NOT_SAVED = _( 'Error; your data might not have been saved' );
-    var MSG_LOADING = _( 'Loading...' );
+    var MSG_SESSION_TIMED_OUT = _( "You need to log in again, your session has timed out" );
+    var MSG_DATA_NOT_SAVED = _( "Error; your data might not have been saved" );
+    var MSG_LOADING = _( "Loading..." );
 
 //]]>
 </script>