diff --git a/config_files/zapret b/config_files/zapret
index 88a78ab..dce264f 100644
--- a/config_files/zapret
+++ b/config_files/zapret
@@ -20,7 +20,7 @@ config main 'config'
 	option NFQWS_ENABLE '1'
 	option DESYNC_MARK '0x40000000'
 	option DESYNC_MARK_POSTNAT '0x20000000'
-	option FILTER_MARK '	'
+	option FILTER_MARK ' '
 	option NFQWS_PORTS_TCP '80,443'
 	option NFQWS_PORTS_UDP '443'
 	option NFQWS_TCP_PKT_OUT '9'