diff --git a/modules/document/document.model.php b/modules/document/document.model.php
index 17c299ecd..45d489ea6 100644
--- a/modules/document/document.model.php
+++ b/modules/document/document.model.php
@@ -904,8 +904,10 @@
         function getDocumentSrlByAlias($mid, $alias)
         {
             if(!$mid || !$alias) return null;
+            $site_module_info = Context::get('site_module_info');
             $args->mid = $mid;
             $args->alias_title = $alias;
+            $args->site_srl = $site_module_info->site_srl;
             $output = executeQuery('document.getDocumentSrlByAlias', $args);
             if(!$output->data) return null;
             else return $output->data->document_srl;
diff --git a/modules/document/queries/getDocumentSrlByAlias.xml b/modules/document/queries/getDocumentSrlByAlias.xml
index baac51464..17eadc534 100644
--- a/modules/document/queries/getDocumentSrlByAlias.xml
+++ b/modules/document/queries/getDocumentSrlByAlias.xml
@@ -7,7 +7,8 @@
         <column name="document_srl" />
     </columns>
     <conditions>
-        <condition operation="equal" column="alias_title" var="alias_title" filter="number" notnull="notnull" />
+        <condition operation="equal" column="alias_title" var="alias_title" notnull="notnull" />
+        <condition operation="equal" column="modules.site_srl" var="site_srl" filter="number" notnull="notnull" pipe="and" />
         <condition operation="equal" column="modules.mid" var="mid" filter="number" notnull="notnull" pipe="and" />
         <condition operation="equal" column="modules.module_srl" var="document_aliases.module_srl" filter="number" notnull="notnull" pipe="and" />
     </conditions>