diff --git a/phpgwapi/inc/class.translation.inc.php b/phpgwapi/inc/class.translation.inc.php
index 0ba16a22d3..c7d92b2b7e 100644
--- a/phpgwapi/inc/class.translation.inc.php
+++ b/phpgwapi/inc/class.translation.inc.php
@@ -466,7 +466,7 @@ class translation
 		{
 			return utf8_decode($data);
 		}
-		if ($this->mbstring && mb_convert_encoding($data,$to,$from)!="")
+		if ($this->mbstring && @mb_convert_encoding($data,$to,$from)!="")
 		{
 			return @mb_convert_encoding($data,$to,$from);
 		}