diff --git a/core/fnv1a.js b/core/fnv1a.js
index ce1fe105..1b8ece32 100644
--- a/core/fnv1a.js
+++ b/core/fnv1a.js
@@ -38,7 +38,7 @@ module.exports = class FNV1a {
 
 	digest(encoding) {
 		encoding = encoding || 'binary';
-		let buf = Buffer.alloc(4);
+		const buf = Buffer.alloc(4);
 		buf.writeInt32BE(this.hash & 0xffffffff, 0);
 		return buf.toString(encoding);
 	}
diff --git a/core/ftn_mail_packet.js b/core/ftn_mail_packet.js
index 5db02227..c42d859b 100644
--- a/core/ftn_mail_packet.js
+++ b/core/ftn_mail_packet.js
@@ -273,7 +273,7 @@ function Packet(options) {
 	};
 
 	this.getPacketHeaderBuffer = function(packetHeader) {
-		let buffer = Buffer.from(FTN_PACKET_HEADER_SIZE);
+		let buffer = Buffer.alloc(FTN_PACKET_HEADER_SIZE);
 
 		buffer.writeUInt16LE(packetHeader.origNode, 0);
 		buffer.writeUInt16LE(packetHeader.destNode, 2);
@@ -311,7 +311,7 @@ function Packet(options) {
 	};
 
 	this.writePacketHeader = function(packetHeader, ws) {
-		let buffer = Buffer.from(FTN_PACKET_HEADER_SIZE);
+		let buffer = Buffer.alloc(FTN_PACKET_HEADER_SIZE);
 
 		buffer.writeUInt16LE(packetHeader.origNode, 0);
 		buffer.writeUInt16LE(packetHeader.destNode, 2);
@@ -747,7 +747,7 @@ function Packet(options) {
 		async.waterfall(
 			[
 				function prepareHeaderAndKludges(callback) {
-					const basicHeader = Buffer.from(34);
+					const basicHeader = Buffer.alloc(34);
 					self.writeMessageHeader(message, basicHeader);			
 
 					//
@@ -864,7 +864,7 @@ function Packet(options) {
 	};
 
 	this.writeMessage = function(message, ws, options) {
-		let basicHeader = Buffer.from(34);
+		const basicHeader = Buffer.alloc(34);
 		self.writeMessageHeader(message, basicHeader);
 
 		ws.write(basicHeader);
diff --git a/core/ftn_util.js b/core/ftn_util.js
index e40d2687..d1f69e0f 100644
--- a/core/ftn_util.js
+++ b/core/ftn_util.js
@@ -46,7 +46,7 @@ exports.getQuotePrefix				= getQuotePrefix;
 //	See list here: https://github.com/Mithgol/node-fidonet-jam
 
 function stringToNullPaddedBuffer(s, bufLen) {
-	let buffer 	= Buffer.alloc(bufLen).fill(0x00);
+	let buffer 	= Buffer.alloc(bufLen);
 	let enc		= iconv.encode(s, 'CP437').slice(0, bufLen);
 	for(let i = 0; i < enc.length; ++i) {
 		buffer[i] = enc[i];