diff --git a/cake/libs/l10n.php b/cake/libs/l10n.php
index e78bd2a67..e13e92083 100644
--- a/cake/libs/l10n.php
+++ b/cake/libs/l10n.php
@@ -399,7 +399,7 @@ class L10n extends Object {
 				$this->charset = $this->__l10nCatalog[$langKey]['charset'];
 
 				if ($this->default) {
-					$this->languagePath[2] = $this->__l10nCatalog[$this->default]['localeFallback'];
+					$this->languagePath[2] = $this->__l10nCatalog[$this->__l10nMap[$this->default]]['localeFallback'];
 				}
 				$this->found = true;
 				Configure::write('Config.language', $this->lang);