diff --git a/application/ui.linksdirectwidget.class.inc.php b/application/ui.linksdirectwidget.class.inc.php
index d41916813..d8e3deffa 100644
--- a/application/ui.linksdirectwidget.class.inc.php
+++ b/application/ui.linksdirectwidget.class.inc.php
@@ -289,6 +289,23 @@ class UILinksWidgetDirect
 	{
 		$sHtml = "<div class=\"wizContainer\" style=\"vertical-align:top;\">\n";
 
+		$oHiddenFilter = new DBObjectSearch($this->sLinkedClass);
+		if (($oCurrentObj != null) && MetaModel::IsSameFamilyBranch($this->sLinkedClass, $this->sClass))
+		{
+			// Prevent linking to self if the linked object is of the same family
+			// and already present in the database
+			if (!$oCurrentObj->IsNew())
+			{
+				$oHiddenFilter->AddCondition('id', $oCurrentObj->GetKey(), '!=');
+			}
+		}
+		if (count($aAlreadyLinked) > 0)
+		{
+			$oHiddenFilter->AddCondition('id', $aAlreadyLinked, 'NOTIN');
+		}
+		$oHiddenCriteria = $oHiddenFilter->GetCriteria();
+		$sHiddenCriteria = $oHiddenCriteria->Render();
+
 		$oLinkSetDef = MetaModel::GetAttributeDef($this->sClass, $this->sAttCode);
 		$valuesDef = $oLinkSetDef->GetValuesDef();
 		if ($valuesDef === null)
@@ -303,25 +320,11 @@ class UILinksWidgetDirect
 			}
 			$oFilter = DBObjectSearch::FromOQL($valuesDef->GetFilterExpression());
 		}
+
 		if ($oCurrentObj != null)
 		{
 			$this->SetSearchDefaultFromContext($oCurrentObj, $oFilter);
-		}
-		if (($oCurrentObj != null) && MetaModel::IsSameFamilyBranch($this->sLinkedClass, $this->sClass))
-		{
-			// Prevent linking to self if the linked object is of the same family
-			// and already present in the database
-			if (!$oCurrentObj->IsNew())
-			{
-				$oFilter->AddCondition('id', $oCurrentObj->GetKey(), '!=');
-			}
-		}
-		if (count($aAlreadyLinked) > 0)
-		{
-			$oFilter->AddCondition('id', $aAlreadyLinked, 'NOTIN');
-		}
-		if ($oCurrentObj != null)
-		{
+
 			$aArgs = array_merge($oCurrentObj->ToArgs('this'), $oFilter->GetInternalParams());
 			$oFilter->SetInternalParams($aArgs);
 		}
@@ -335,6 +338,7 @@ class UILinksWidgetDirect
 				'table_inner_id' => "ResultsToAdd_{$this->sInputid}",
 				'cssCount' => "#count_{$this->sInputid}",
 				'query_params' => $oFilter->GetInternalParams(),
+				'hidden_criteria' => $sHiddenCriteria,
 			)
         );
 		$sHtml .= "<form id=\"ObjectsAddForm_{$this->sInputid}\">\n";
diff --git a/application/ui.linkswidget.class.inc.php b/application/ui.linkswidget.class.inc.php
index 48d0d22ce..cd9f96f63 100644
--- a/application/ui.linkswidget.class.inc.php
+++ b/application/ui.linkswidget.class.inc.php
@@ -397,11 +397,20 @@ EOF
 	{
 		$bOpen = MetaModel::GetConfig()->Get('legacy_search_drawer_open');
 		$sHtml = "<div class=\"wizContainer\" style=\"vertical-align:top;\">\n";
-		$oFilter = new DBObjectSearch($this->m_sRemoteClass);
+
+		$oAlreadyLinkedFilter = new DBObjectSearch($this->m_sRemoteClass);
 		if (!$this->m_bDuplicatesAllowed && count($aAlreadyLinkedIds) > 0)
 		{
-			$oFilter->AddCondition('id', $aAlreadyLinkedIds, 'NOTIN');
+			$oAlreadyLinkedFilter->AddCondition('id', $aAlreadyLinkedIds, 'NOTIN');
+			$oAlreadyLinkedExpression = $oAlreadyLinkedFilter->GetCriteria();
+			$sAlreadyLinkedExpression = $oAlreadyLinkedExpression->Render();
 		}
+		else
+		{
+			$sAlreadyLinkedExpression = '';
+		}
+
+		$oFilter = new DBObjectSearch($this->m_sRemoteClass);
 		if ($oCurrentObj != null)
 		{
 			$this->SetSearchDefaultFromContext($oCurrentObj, $oFilter);
@@ -418,6 +427,7 @@ EOF
 				'json' => $sJson,
 				'cssCount' => '#count_'.$this->m_sAttCode.$this->m_sNameSuffix,
 				'query_params' => $oFilter->GetInternalParams(),
+				'hidden_criteria' => $sAlreadyLinkedExpression,
 			));
 		$sHtml .= "<form id=\"ObjectsAddForm_{$this->m_sAttCode}{$this->m_sNameSuffix}\">\n";
 		$sHtml .= "<div id=\"SearchResultsToAdd_{$this->m_sAttCode}{$this->m_sNameSuffix}\" style=\"vertical-align:top;background: #fff;height:100%;overflow:auto;padding:0;border:0;\">\n";
diff --git a/pages/ajax.searchform.php b/pages/ajax.searchform.php
index 0933fda06..6094a0a55 100644
--- a/pages/ajax.searchform.php
+++ b/pages/ajax.searchform.php
@@ -50,12 +50,20 @@ try
 	$oPage->no_cache();
 	$oPage->SetContentType('text/html');
 
-	$aParams = json_decode($sParams, true);
-	$oFilter = CriterionParser::Parse($aParams['base_oql'], $aParams['criterion']);
-	$oDisplayBlock = new DisplayBlock($oFilter, 'list', false);
-
 	$sListParams = utils::ReadParam('list_params', '{}', false, 'raw_data');
-	$aListParams = (array) json_decode($sListParams, true);
+	$aListParams = (array)json_decode($sListParams, true);
+
+	$aParams = json_decode($sParams, true);
+	if (array_key_exists('hidden_criteria', $aListParams))
+	{
+		$sHiddenCriteria = $aListParams['hidden_criteria'];
+	}
+	else
+	{
+		$sHiddenCriteria = '';
+	}
+	$oFilter = CriterionParser::Parse($aParams['base_oql'], $aParams['criterion'], $sHiddenCriteria);
+	$oDisplayBlock = new DisplayBlock($oFilter, 'list', false);
 
 	foreach($aListParams as $key => $value)
     {
diff --git a/sources/application/search/criterionparser.class.inc.php b/sources/application/search/criterionparser.class.inc.php
index 0c8365a22..903bb7b71 100644
--- a/sources/application/search/criterionparser.class.inc.php
+++ b/sources/application/search/criterionparser.class.inc.php
@@ -31,6 +31,7 @@ namespace Combodo\iTop\Application\Search;
 
 use Combodo\iTop\Application\Search\CriterionConversion\CriterionToOQL;
 use DBObjectSearch;
+use Expression;
 use IssueLog;
 use OQLException;
 
@@ -40,10 +41,11 @@ class CriterionParser
 	/**
 	 * @param $sBaseOql
 	 * @param $aCriterion
+	 * @param $sHiddenCriteria
 	 *
 	 * @return \DBSearch
 	 */
-	public static function Parse($sBaseOql, $aCriterion)
+	public static function Parse($sBaseOql, $aCriterion, $sHiddenCriteria = null)
 	{
 		$aExpression = array();
 		$aOr = $aCriterion['or'];
@@ -60,14 +62,21 @@ class CriterionParser
 		try
 		{
 			$oSearch = DBObjectSearch::FromOQL($sBaseOql);
+
+			if (!empty($sHiddenCriteria))
+			{
+				$oHiddenCriteriaExpression = Expression::FromOQL($sHiddenCriteria);
+				$oSearch->AddConditionExpression($oHiddenCriteriaExpression);
+			}
+
 			if (empty($aExpression))
 			{
 				return $oSearch;
 			}
 
-			$oExpression = \Expression::FromOQL(implode(" OR ", $aExpression));
+			$oExpression = Expression::FromOQL(implode(" OR ", $aExpression));
 			$oSearch->AddConditionExpression($oExpression);
-			
+
 			return $oSearch;
 		} catch (OQLException $e)
 		{
diff --git a/sources/application/search/searchform.class.inc.php b/sources/application/search/searchform.class.inc.php
index bff97eb51..a49d86639 100644
--- a/sources/application/search/searchform.class.inc.php
+++ b/sources/application/search/searchform.class.inc.php
@@ -146,6 +146,7 @@ class SearchForm
 		{
 			$aListParams['table_inner_id'] = uniqid('table_inner_id_');
 		}
+		// When table_id is different of result_list_outer_selector
 		if (array_key_exists('table_id2', $aExtraParams))
 		{
 			$aListParams['table_id'] = $aExtraParams['table_id2'];