diff --git a/htdocs/comm/propal/list.php b/htdocs/comm/propal/list.php
index 1e00e48f36e..45ca1c5212d 100644
--- a/htdocs/comm/propal/list.php
+++ b/htdocs/comm/propal/list.php
@@ -310,7 +310,7 @@ if ($search_country) $sql .= " AND s.fk_pays IN (".$db->escape($search_country).
 if ($search_type_thirdparty) $sql .= " AND s.fk_typent IN (".$db->escape($search_type_thirdparty).')';
 if ($search_ref)         $sql .= natural_search('p.ref', $search_ref);
 if ($search_refcustomer) $sql .= natural_search('p.ref_client', $search_refcustomer);
-if ($search_refproject) $sql .= natural_search('pr.ref', $search_refprojet);
+if ($search_refproject) $sql .= natural_search('pr.ref', $search_refproject);
 if ($search_availability) $sql .= " AND p.fk_availability IN (".$db->escape($search_availability).')';
 
 if ($search_societe)     $sql .= natural_search('s.nom', $search_societe);
@@ -432,7 +432,7 @@ if ($resql)
 	if ($search_year)        $param.='&search_year='.urlencode($search_year);
 	if ($search_ref)         $param.='&search_ref='.urlencode($search_ref);
 	if ($search_refcustomer) $param.='&search_refcustomer='.urlencode($search_refcustomer);
-	if ($search_refprojet)   $param.='&search_refprojet='.urlencode($search_refprojet);
+	if ($search_refproject)  $param.='&search_refproject='.urlencode($search_refproject);
 	if ($search_societe)     $param.='&search_societe='.urlencode($search_societe);
 	if ($search_user > 0)    $param.='&search_user='.urlencode($search_user);
 	if ($search_sale > 0)    $param.='&search_sale='.urlencode($search_sale);
diff --git a/htdocs/core/class/html.formprojet.class.php b/htdocs/core/class/html.formprojet.class.php
index f437920caf9..dcc282794b9 100644
--- a/htdocs/core/class/html.formprojet.class.php
+++ b/htdocs/core/class/html.formprojet.class.php
@@ -468,9 +468,10 @@ class FormProjets
 	 *    @param	string		$socid				If of thirdparty to use as filter or 'id1,id2,...'
 	 *    @param	string		$morecss			More CSS
 	 *    @param    int         $limitonstatus      Add filters to limit length of list to opened status (for example to avoid ERR_RESPONSE_HEADERS_TOO_BIG on project/element.php page). TODO To implement
+	 *    @param	string		$projectkey			Equivalent key  to fk_projet for actual table_element
 	 *    @return	int|string						The HTML select list of element or '' if nothing or -1 if KO
 	 */
-	function select_element($table_element, $socid=0, $morecss='', $limitonstatus=-2)
+	function select_element($table_element, $socid=0, $morecss='', $limitonstatus=-2,$projectkey="fk_projet")
 	{
 		global $conf, $langs;
 
@@ -480,7 +481,7 @@ class FormProjets
 		if (! in_array($table_element, array('don','expensereport_det','expensereport','loan','stock_mouvement','chargesociales'))) $linkedtothirdparty=true;
 
 		$sqlfilter='';
-		$projectkey="fk_projet";
+		
 		//print $table_element;
 		switch ($table_element)
 		{
diff --git a/htdocs/projet/class/project.class.php b/htdocs/projet/class/project.class.php
index 210ff9e09a9..e117dc3eb39 100644
--- a/htdocs/projet/class/project.class.php
+++ b/htdocs/projet/class/project.class.php
@@ -523,9 +523,10 @@ class Project extends CommonObject
      * 	@param		string		$datefieldname	name of date field for filter
      *  @param		int			$dates			Start date
      *  @param		int			$datee			End date
+	 *	@param		string		$projectkey		Equivalent key  to fk_projet for actual type
      * 	@return		mixed						Array list of object ids linked to project, < 0 or string if error
      */
-    function get_element_list($type, $tablename, $datefieldname='', $dates='', $datee='')
+    function get_element_list($type, $tablename, $datefieldname='', $dates='', $datee='', $projectkey='fk_projet')
     {
         $elements = array();
 
@@ -555,7 +556,7 @@ class Project extends CommonObject
 		}
         else
 		{
-            $sql = "SELECT rowid FROM " . MAIN_DB_PREFIX . $tablename." WHERE fk_projet IN (". $ids .")";
+            $sql = "SELECT rowid FROM " . MAIN_DB_PREFIX . $tablename." WHERE ".$projectkey." IN (". $ids .")";
 		}
 
 		if ($dates > 0)
diff --git a/htdocs/projet/element.php b/htdocs/projet/element.php
index 7a263ba3995..79b2be5b009 100644
--- a/htdocs/projet/element.php
+++ b/htdocs/projet/element.php
@@ -575,11 +575,12 @@ foreach ($listofreferent as $key => $value)
 	$datefieldname=$value['datefieldname'];
 	$qualified=$value['test'];
 	$margin = $value['margin'];
+	$project_field = $value['project_field'];
 	if ($qualified && isset($margin))		// If this element must be included into profit calculation ($margin is 'minus' or 'plus')
 	{
 		$element = new $classname($db);
 
-		$elementarray = $object->get_element_list($key, $tablename, $datefieldname, $dates, $datee);
+		$elementarray = $object->get_element_list($key, $tablename, $datefieldname, $dates, $datee, !empty($project_field)?$project_field:'fk_projet');
 
 		if (count($elementarray)>0 && is_array($elementarray))
 		{
@@ -710,6 +711,7 @@ foreach ($listofreferent as $key => $value)
 	$urlnew=$value['urlnew'];
 	$buttonnew=$value['buttonnew'];
     $testnew=$value['testnew'];
+	$project_field=$value['project_field'];
 
 	if ($qualified)
 	{
@@ -732,7 +734,7 @@ foreach ($listofreferent as $key => $value)
 
        	if (empty($conf->global->PROJECT_LINK_ON_OVERWIEW_DISABLED) && $idtofilterthirdparty && !in_array($tablename, array('payment_various')))
        	{
-			$selectList=$formproject->select_element($tablename, $idtofilterthirdparty, 'minwidth300');
+			$selectList=$formproject->select_element($tablename, $idtofilterthirdparty, 'minwidth300',-2,!empty($project_field)?$project_field:'fk_projet');
 			if (! $selectList || ($selectList<0))
 			{
 				setEventMessages($formproject->error,$formproject->errors,'errors');
@@ -800,7 +802,7 @@ foreach ($listofreferent as $key => $value)
 		else print '<td align="right" width="200">'.$langs->trans("Status").'</td>';
 		print '</tr>';
 
-		$elementarray = $object->get_element_list($key, $tablename, $datefieldname, $dates, $datee);
+		$elementarray = $object->get_element_list($key, $tablename, $datefieldname, $dates, $datee,!empty($project_field)?$project_field:'fk_projet');
 		if (is_array($elementarray) && count($elementarray)>0)
 		{
 			$total_ht = 0;