diff --git a/php/classes/DerivedParamMgr.php b/php/classes/DerivedParamMgr.php
index d4f1e2f..05ab093 100644
--- a/php/classes/DerivedParamMgr.php
+++ b/php/classes/DerivedParamMgr.php
@@ -360,8 +360,8 @@ class DerivedParamMgr extends AmdaObjectMgr
 		if (!$res['valid']) return $res;
 		
 		//only low case
-		if (strtolower($p->name) != $p->name)
-			return array('valid' => false, 'error' => 'Use only low case');
+// 		if (strtolower($p->name) != $p->name)
+// 			return array('valid' => false, 'error' => 'Use only low case');
 		
 		return array('valid' => true);
 	}
--
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