Index: branches/1.2.x/install.php
===================================================================
--- branches/1.2.x/install.php
+++ branches/1.2.x/install.php
@@ -33,6 +33,6 @@
 
 $toolkit->RunSQL('/' . $module_folder . '/install/install_schema.sql');
 $toolkit->RunSQL('/' . $module_folder . '/install/install_data.sql');
-$toolkit->ImportLanguage('/' . $module_folder . '/install/english');
+$toolkit->ImportLanguage('/' . $module_folder . '/install/english', isset($constants_file));
 
-$toolkit->finalizeModuleInstall($module_folder, false);
\ No newline at end of file
+$toolkit->finalizeModuleInstall($module_folder, false);