diff --git a/phpgwapi/inc/class.sqlfs_utils.inc.php b/phpgwapi/inc/class.sqlfs_utils.inc.php
index 9995c9b00a..67a93cbb48 100644
--- a/phpgwapi/inc/class.sqlfs_utils.inc.php
+++ b/phpgwapi/inc/class.sqlfs_utils.inc.php
@@ -24,7 +24,7 @@ class sqlfs_utils extends sqlfs_stream_wrapper
 	 *
 	 * @param boolean $debug true to echo a message for each copied file
 	 */
-	static function migrate_db2fs($debug=false)
+	static function migrate_db2fs($debug=true)
 	{
 		if (!is_object(self::$pdo))
 		{
@@ -79,7 +79,7 @@ class sqlfs_utils extends sqlfs_stream_wrapper
 				{
 					throw new egw_exception_assertion_failed(__METHOD__."(): fs_id=$fs_id ($fs_name) $bytes bytes copied != size of $fs_size bytes!");
 				}
-				if ($debug) echo "$fs_id: $fs_name: $bytes bytes copied to fs\n";
+				if ($debug) error_log("$fs_id: $fs_name: $bytes bytes copied to fs");
 				fclose($dest);
 				fclose($content); unset($content);
 
@@ -94,7 +94,7 @@ class sqlfs_utils extends sqlfs_stream_wrapper
 
 		if ($n)	// delete all content in DB, if there was some AND no error (exception thrown!)
 		{
-			$query = 'UPDATE '.self::TABLE.' SET fs_content=NULL WHERE fs_content IS NOT NULL';
+			$query = 'UPDATE '.self::TABLE.' SET fs_content=NULL';
 			$stmt = self::$pdo->prepare($query);
 			$stmt->execute();
 		}