diff --git a/plugin/sepe/src/sepe_plugin.class.php b/plugin/sepe/src/sepe_plugin.class.php
index f254b01101..d019cd1cb0 100644
--- a/plugin/sepe/src/sepe_plugin.class.php
+++ b/plugin/sepe/src/sepe_plugin.class.php
@@ -80,7 +80,7 @@ class SepePlugin extends Plugin
         $sm = $cn->getSchemaManager();
         $tables = $sm->tablesExist($tablesToBeCompared);
 
-        if ($tables) {
+        if (empty($tables)) {
             return false;
         }