diff --git a/intranet/modules/impression/static/impression.js b/intranet/modules/impression/static/impression.js
index 72cd050e..15895bba 100644
--- a/intranet/modules/impression/static/impression.js
+++ b/intranet/modules/impression/static/impression.js
@@ -150,8 +150,9 @@ Impression.settings.update = function () {
    // Contraintes
    if (
        /* ( this.papier != "A4" ) || */
-       ( (this.disposition == "recto") && (this.nb_pages>50) ) ||
-       ( (this.disposition == "rectoverso") && (this.nb_pages>100) )
+       ( (this.disposition_recto.checked) && (this.nb_pages>50) ) ||
+       ( (this.disposition_rectoverso.checked) && (this.nb_pages>100) )||
+       ( (this.disposition_livret.checked) && (this.nb_pages>60) )
        )
      {
 	this.setValue(this.theform.agrafage, "None");