diff --git a/workflow/engine/classes/class.pmFunctions.php b/workflow/engine/classes/class.pmFunctions.php
index 667e33de3..f0fb6f715 100755
--- a/workflow/engine/classes/class.pmFunctions.php
+++ b/workflow/engine/classes/class.pmFunctions.php
@@ -250,6 +250,9 @@ function executeQuery ($SqlStatement, $DBConnectionUID = 'workflow', $aParameter
         ((isset($blackList['tables']))? $blackList['tables'] : '') .
         ((isset($blackList['pmtables']))? $blackList['pmtables'] : '')
     );
+    if (!class_exists('PHPSQLParser')) {
+        G::LoadSystem('phpSqlParser');
+    }
     $parseSqlStm = new PHPSQLParser($SqlStatement);
     try {
         //Parsing queries and check the blacklist