diff --git a/templates/web/prod/index.html.twig b/templates/web/prod/index.html.twig
index dc6336d0a0..7aa3f0299a 100644
--- a/templates/web/prod/index.html.twig
+++ b/templates/web/prod/index.html.twig
@@ -181,9 +181,9 @@
                                         <div class="wizard wiz_2" style="display:none">
                                             <div class="txt">{% trans 'prod::thesaurusTab:wizard:remplacer par le terme' %}</div>
                                         </div>
-                                        <form class="gform form-inline" href="#" onsubmit="T_Gfilter(this);return(false);">
+                                        <form class="gform form-inline" onsubmit="T_Gfilter(this);return(false);">
                                             <div class="input-append">
-                                                <input type="text" class="input-medium" onkeyup="T_Gfilter_delayed(this.value, 300);" />
+                                                <input type="text" name="search_value" class="input-medium" onkeyup="T_Gfilter_delayed(this.value, 300);" />
                                                 <input type="submit" class="th_ok btn" value="{% trans 'boutton::rechercher' %}" />
                                                 <input type="button" class="th_cancel btn" value="{% trans 'boutton::annuler' %}" onclick="thesauCancelWizard();return(false);"/>
                                              </div>
diff --git a/templates/web/prod/thesaurus.js b/templates/web/prod/thesaurus.js
index f77d19a61d..bd39454b91 100644
--- a/templates/web/prod/thesaurus.js
+++ b/templates/web/prod/thesaurus.js
@@ -44,11 +44,11 @@ function T_Gfilter(o)
 {
   var f;
   if(o.nodeName=="FORM")
-    f = $(o).children(":text").val();
+    f = $(o).find("input[name=search_value]").val();
   else if(o.nodeName=="INPUT")
-    f = o.value;
+    f = $(o).val();
 
-  T_Gfilter_delayed(f, 0);
+    T_Gfilter_delayed(f, 0);
 
   switch(p4.thesau.currentWizard)
   {