diff --git a/core/dict.class.inc.php b/core/dict.class.inc.php
index c64c3a717..18b88f2ba 100644
--- a/core/dict.class.inc.php
+++ b/core/dict.class.inc.php
@@ -152,7 +152,7 @@ class Dict
 
 		if (!array_key_exists($sLangCode, self::$m_aData))
 		{
-			IssueLog::Warning("Cannot find $sLangCode in dictionnaries. default labels displayed");
+			IssueLog::Error("Cannot find $sLangCode in dictionnaries. default labels displayed", LogChannels::APC);
 			// It may happen, when something happens before the dictionaries get loaded
 			return $sStringCode;
 		}
diff --git a/core/log.class.inc.php b/core/log.class.inc.php
index 39988557c..739db5082 100644
--- a/core/log.class.inc.php
+++ b/core/log.class.inc.php
@@ -542,6 +542,7 @@ class LogChannels
 	const DEADLOCK = 'DeadLock';
 	const INLINE_IMAGE = 'InlineImage';
 	const PORTAL = 'portal';
+	const APC = 'apc';
 }