diff --git a/pkg/vtiger/modules/Projects/Project/modules/Project/models/Relation.php b/pkg/vtiger/modules/Projects/Project/modules/Project/models/Relation.php
index cbd14356267cacec7c85938a8f75855ef4fd4c4d..72086687f5f3b9e25f311cbdc966e1524ab1139c 100644
--- a/pkg/vtiger/modules/Projects/Project/modules/Project/models/Relation.php
+++ b/pkg/vtiger/modules/Projects/Project/modules/Project/models/Relation.php
@@ -21,6 +21,7 @@ class Project_Relation_Model extends Vtiger_Relation_Model{
 		$destinationModuleName = $this->getRelationModuleModel()->get('name');
 		$sourceModuleFocus = CRMEntity::getInstance($sourceModuleName);
         	$sourceModuleFocus->delete_related_module($sourceModuleName, $sourceRecordId, $destinationModuleName, $relatedRecordId);
+			$sourceModuleFocus->trackUnLinkedInfo($sourceModuleName, $sourceRecordId, $destinationModuleName, $relatedRecordId);
 		return true;
 	}
 }