diff --git a/webapp/controller/ToolsController.class.php b/webapp/controller/ToolsController.class.php
index 5ab0058a..20af21a6 100644
--- a/webapp/controller/ToolsController.class.php
+++ b/webapp/controller/ToolsController.class.php
@@ -25,8 +25,8 @@ class ToolsController extends BaseController {
             $tables = $conn->execQueryAsArray('show tables;');
             foreach ($tables as $table) {
                 $tblName = $table[0];
-                $conn->execScript("DELETE FROM {$tblName};",
-                                  arary());
+                $conn->execScript("DROP TABLE {$tblName};",
+                                  array());
             }
         }
     }