diff --git a/src/app/p_services/admin/lifeCycleManagement/service-rule-design/service-rule-design.component.ts b/src/app/p_services/admin/lifeCycleManagement/service-rule-design/service-rule-design.component.ts
index 05629b3079da12dbd1a3c03383c2070219d9335c..a87aeee38c1253c008869b7febc1270f678a450f 100644
--- a/src/app/p_services/admin/lifeCycleManagement/service-rule-design/service-rule-design.component.ts
+++ b/src/app/p_services/admin/lifeCycleManagement/service-rule-design/service-rule-design.component.ts
@@ -722,11 +722,9 @@ export class ServiceRuleDesignComponent implements OnInit {
 
           var objects = Blockly.Java.valueToCode(block, 'VARIABLES', Blockly.Java.ORDER_NONE)  || null;
 
-          objects = objects.replace('[', ' ,');
-          objects = objects.replace(']', ' ');
+          objects = objects.substring(1, objects.length-1 ); //remove first and last brackets
 
-
-          var code = 'String.format(' +  atext + objects + ')';
+          var code = 'String.format(' +  atext + ', ' + objects + ')';
           return [code, Blockly.Java.ORDER_ATOMIC];
       };