diff --git a/Lidgren.Network/NetBuffer.Write.cs b/Lidgren.Network/NetBuffer.Write.cs
index 03e18ff..72f937c 100644
--- a/Lidgren.Network/NetBuffer.Write.cs
+++ b/Lidgren.Network/NetBuffer.Write.cs
@@ -101,6 +101,16 @@ namespace Lidgren.Network
 			m_bitLength += 8;
 		}
 
+		/// <summary>
+		/// Writes a byte at a given offset in the buffer
+		/// </summary>
+		public void WriteAt(Int32 offset, byte source) {
+			int newBitLength = Math.Max(m_bitLength, offset + 8);
+			EnsureBufferSize(newBitLength);
+			NetBitWriter.WriteByte((byte) source, 8, m_data, offset);
+			m_bitLength = newBitLength;
+		}
+
 		/// <summary>
 		/// Writes a signed byte
 		/// </summary>