diff --git a/i18n/i18nTextCollector.php b/i18n/i18nTextCollector.php
index c1e6ccf7b..313f49fcf 100644
--- a/i18n/i18nTextCollector.php
+++ b/i18n/i18nTextCollector.php
@@ -155,7 +155,10 @@ class i18nTextCollector extends Object {
 			//      Currently not possible because adapter instances can't be fully reset through the Zend API,
 			//      meaning master strings accumulate across modules
 			if($mergeWithExisting) {
-				$adapter = Injector::inst()->create('i18nRailsYamlAdapter');
+				$adapter = Injector::inst()->create(
+					'i18nRailsYamlAdapter', 
+					array('locale' => 'auto')
+				);
 				$masterFile = "{$this->basePath}/{$module}/lang/" 
 					. $adapter->getFilenameForLocale($this->defaultLocale);
 				if(!file_exists($masterFile)) continue;