diff --git a/static/scripts/galaxy.base.js b/static/scripts/galaxy.base.js
index dae4ebbcd51..d37f09eac84 100644
--- a/static/scripts/galaxy.base.js
+++ b/static/scripts/galaxy.base.js
@@ -261,7 +261,7 @@ function replace_big_select_inputs(min_length, max_length, select_elts) {
     select_elts = select_elts || $('select');
 
     select_elts.each( function() {
-        var select_elt = $(this);
+        var select_elt = $(this).not('[multiple]');
         // Make sure that options is within range.
         var num_options = select_elt.find('option').length;
         if ( (num_options < min_length) || (num_options > max_length) ) {