diff --git a/htdocs/opensurvey/card.php b/htdocs/opensurvey/card.php
index 1cc900c7bd0..cc359726513 100644
--- a/htdocs/opensurvey/card.php
+++ b/htdocs/opensurvey/card.php
@@ -101,8 +101,8 @@ if (empty($reshook)) {
 		$object->update($user);
 	}
 
-	// Reopend
-	if ($action == 'reopen') {
+	// Valid or Reopend
+	if ($action == 'reopen' || $action == 'validate') {
 		$object->status = Opensurveysondage::STATUS_VALIDATED;
 		$object->update($user);
 	}
@@ -376,6 +376,11 @@ if ($action != 'edit' && $user->hasRight('opensurvey', 'write')) {
 	// Modify button
 	print '<a class="butAction" href="'.$_SERVER["PHP_SELF"].'?action=edit&token='.newToken().'&id='.urlencode($numsondage).'">'.$langs->trans("Modify").'</a>';
 
+	if ($object->status == Opensurveysondage::STATUS_DRAFT) {
+		// Validate button
+		print '<a class="butAction" href="'.$_SERVER["PHP_SELF"].'?action=validate&token='.newToken().'&id='.urlencode($numsondage).'">'.$langs->trans("Valid").'</a>';
+	}
+
 	if ($object->status == Opensurveysondage::STATUS_VALIDATED) {
 		// Close button
 		print '<a class="butAction" href="'.$_SERVER["PHP_SELF"].'?action=close&token='.newToken().'&id='.urlencode($numsondage).'">'.$langs->trans("Close").'</a>';