diff --git a/extdbms/lib/Model/Service.php b/extdbms/lib/Model/Service.php
index fe101bf..62e983b 100644
--- a/extdbms/lib/Model/Service.php
+++ b/extdbms/lib/Model/Service.php
@@ -71,8 +71,8 @@ class Service extends Model
                 break;
             case 'GDIDC':
                 return array(
-                    "helper" => "AND Client_Code NOT IN ('C916')",
-                    "gdidc" => "",
+                    "helper" => "AND Client_Code IN ('C916')",
+                    "gdidc" => "AND Client_Code NOT IN ('C916')",
                 );
                 break;
             default: