diff --git a/I2NPProtocol.h b/I2NPProtocol.h
index 2dfa8fbb..294abcc9 100644
--- a/I2NPProtocol.h
+++ b/I2NPProtocol.h
@@ -189,7 +189,7 @@ namespace tunnel
 	struct I2NPMessageBuffer: public I2NPMessage
 	{
 		I2NPMessageBuffer () { buf = m_Buffer; maxLen = sz; };
-		uint8_t m_Buffer[sz];
+		uint8_t m_Buffer[sz + 16];
 	};
 
 	I2NPMessage * NewI2NPMessage ();