diff --git a/libi2pd/Tag.h b/libi2pd/Tag.h
index d898395f..d0b0c056 100644
--- a/libi2pd/Tag.h
+++ b/libi2pd/Tag.h
@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2013-2022, The PurpleI2P Project
+* Copyright (c) 2013-2023, The PurpleI2P Project
 *
 * This file is part of Purple i2pd project and licensed under BSD3
 *
@@ -80,6 +80,13 @@ namespace data {
 				return i2p::data::Base64ToByteStream (s.c_str (), s.length (), m_Buf, sz);
 			}
 
+			uint8_t GetBit (int i) const
+			{
+				int pos = i >> 3; // /8
+				if (pos >= sz) return 0;
+				return m_Buf[pos] & (1 << (7 - (i & 0x07))); 
+			}		
+		
 		private:
 
 			union // 8 bytes aligned