diff --git a/htdocs/fourn/class/fournisseur.facture.class.php b/htdocs/fourn/class/fournisseur.facture.class.php
index 31022d839650d..ea91765b94a4b 100644
--- a/htdocs/fourn/class/fournisseur.facture.class.php
+++ b/htdocs/fourn/class/fournisseur.facture.class.php
@@ -1032,7 +1032,7 @@ public function validate($user, $force_number='', $idwarehouse=0, $notrigger=0)
         // Check parameters
         if (preg_match('/^'.preg_quote($langs->trans("CopyOf").' ').'/', $this->ref_supplier))
         {
-            $this->error=$langs->trans("ErrorFieldFormat",$langs->transnoentities("RefSupplier"));
+            $this->error=$langs->trans("ErrorFieldFormat",$langs->transnoentities("RefSupplier")).'. '.$langs->trans('RemoveString',$langs->transnoentitiesnoconv("CopyOf"));
             return -1;
         }
 
diff --git a/htdocs/langs/en_US/main.lang b/htdocs/langs/en_US/main.lang
index 14aa36756b8e1..3d5515d901c09 100644
--- a/htdocs/langs/en_US/main.lang
+++ b/htdocs/langs/en_US/main.lang
@@ -737,6 +737,7 @@ Miscellaneous=Miscellaneous
 Calendar=Calendar
 GroupBy=Group by...
 ViewFlatList=View flat list
+RemoveString=Remove string '%s'
 # Week day
 Monday=Monday
 Tuesday=Tuesday
diff --git a/htdocs/projet/card.php b/htdocs/projet/card.php
index ce39fad4a1414..9fa2db53a25b6 100644
--- a/htdocs/projet/card.php
+++ b/htdocs/projet/card.php
@@ -661,7 +661,7 @@ function change_percent()
     {
         $formquestion=array(
     		'text' => $langs->trans("ConfirmClone"),
-			array('type' => 'other','name' => 'socid','label' => $langs->trans("SelectThirdParty"),'value' => $form->select_company(GETPOST('socid', 'int')>0?GETPOST('socid', 'int'):$object->socid, 'socid', '', "None")),
+			array('type' => 'other','name' => 'socid','label' => $langs->trans("SelectThirdParty"),'value' => $form->select_company(GETPOST('socid', 'int')>0?GETPOST('socid', 'int'):$object->socid, 'socid', '', "None", 0, 0, null, 0, 'minwidth200')),
             array('type' => 'checkbox', 'name' => 'clone_contacts',		'label' => $langs->trans("CloneContacts"), 			'value' => true),
             array('type' => 'checkbox', 'name' => 'clone_tasks',   		'label' => $langs->trans("CloneTasks"), 			'value' => true),
         	array('type' => 'checkbox', 'name' => 'move_date',   		'label' => $langs->trans("CloneMoveDate"), 			'value' => true),
@@ -670,7 +670,7 @@ function change_percent()
         	array('type' => 'checkbox', 'name' => 'clone_task_files',	'label' => $langs->trans("CloneTaskFiles"),         'value' => false)
         );
 
-        print $form->formconfirm($_SERVER["PHP_SELF"]."?id=".$object->id, $langs->trans("CloneProject"), $langs->trans("ConfirmCloneProject"), "confirm_clone", $formquestion, '', 1, 300);
+        print $form->formconfirm($_SERVER["PHP_SELF"]."?id=".$object->id, $langs->trans("CloneProject"), $langs->trans("ConfirmCloneProject"), "confirm_clone", $formquestion, '', 1, 300, 590);
     }
 
 
diff --git a/htdocs/projet/class/project.class.php b/htdocs/projet/class/project.class.php
index d14645e5e99ff..a348fc3200a20 100644
--- a/htdocs/projet/class/project.class.php
+++ b/htdocs/projet/class/project.class.php
@@ -705,6 +705,13 @@ function setValid($user)
 
         if ($this->statut != 1)
         {
+            // Check parameters
+            if (preg_match('/^'.preg_quote($langs->trans("CopyOf").' ').'/', $this->title))
+            {
+                $this->error=$langs->trans("ErrorFieldFormat",$langs->transnoentities("Label")).'. '.$langs->trans('RemoveString',$langs->transnoentitiesnoconv("CopyOf"));
+                return -1;
+            }
+            
             $this->db->begin();
 
             $sql = "UPDATE " . MAIN_DB_PREFIX . "projet";
@@ -1196,6 +1203,7 @@ function createFromClone($fromid,$clone_contact=false,$clone_task=true,$clone_pr
     	if (is_numeric($defaultref) && $defaultref <= 0) $defaultref='';
 
 		$clone_project->ref=$defaultref;
+		$clone_project->title=$langs->trans("CopyOf").' '.$clone_project->title;
 
 		// Create clone
 		$result=$clone_project->create($user,$notrigger);