diff --git a/auto-complete.js b/auto-complete.js
index 2f5a88c..bcae80c 100644
--- a/auto-complete.js
+++ b/auto-complete.js
@@ -152,6 +152,9 @@ var autoComplete = (function(){
                 else if (key == 27) { that.value = that.last_val; that.sc.style.display = 'none'; }
                 // enter
                 else if (key == 13 || key == 9) {
+                    if (that.sc.style.display !== 'none') {
+                        e.preventDefault();
+                    }
                     var sel = that.sc.querySelector('.autocomplete-suggestion.selected');
                     if (sel && that.sc.style.display != 'none') { o.onSelect(e, sel.getAttribute('data-val'), sel); setTimeout(function(){ that.sc.style.display = 'none'; }, 20); }
                 }