diff --git a/module/project/model.php b/module/project/model.php
index d1e53ca07a..2546f3e5d0 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -1699,7 +1699,7 @@ class projectModel extends model
         }
 
         /* Delete the execution linked products that is not linked with the execution. */
-        if($projectID)
+        if((int)$projectID > 0)
         {
             $executions = $this->dao->select('id')->from(TABLE_EXECUTION)->where('project')->eq((int)$projectID)->fetchPairs('id');
             $this->dao->delete()->from(TABLE_PROJECTPRODUCT)->where('project')->in($executions)->andWhere('product')->notin($products)->exec();