diff --git a/irc/parser.ts b/irc/parser.ts
index 4c69bb9..be6202b 100644
--- a/irc/parser.ts
+++ b/irc/parser.ts
@@ -18,7 +18,7 @@ export interface IIRCLine {
 }
 
 function parseERROR(line: string[]): IIRCLine {
-  let final: IIRCLine = {
+  const final: IIRCLine = {
     user: { nickname: '', username: '', hostname: '' },
     command: 'ERROR',
     trailing: '',
@@ -36,7 +36,7 @@ function parseERROR(line: string[]): IIRCLine {
 }
 
 export function parse(rawline: string): IIRCLine {
-  let final: IIRCLine = {
+  const final: IIRCLine = {
     user: {
       nickname: '',
       username: '',
@@ -48,15 +48,15 @@ export function parse(rawline: string): IIRCLine {
     raw: rawline
   };
 
-  let pass1 = (rawline.indexOf(':') === 0 ? rawline.substring(1).split(' ') : rawline.split(' '));
+  const pass1 = (rawline.indexOf(':') === 0 ? rawline.substring(1).split(' ') : rawline.split(' '));
   if (pass1[0] === 'ERROR') {
     return parseERROR(pass1);
   }
 
   if (pass1[0].indexOf('!') !== -1) {
-    let nickuser = pass1[0].split('!');
+    const nickuser = pass1[0].split('!');
     final.user.nickname = nickuser[0];
-    let userhost = nickuser[1].split('@');
+    const userhost = nickuser[1].split('@');
     final.user.username = userhost[0];
     final.user.hostname = userhost[1];
   } else {
@@ -65,7 +65,7 @@ export function parse(rawline: string): IIRCLine {
 
   final.command = pass1[1];
 
-  let pass2 = pass1.slice(2).join(' ');
+  const pass2 = pass1.slice(2).join(' ');
   if (pass2.indexOf(':') !== -1) {
     final.arguments = pass2.substring(0, pass2.indexOf(' :')).split(' ');
     final.trailing = pass2.substring(pass2.indexOf(':') + 1);
@@ -73,5 +73,5 @@ export function parse(rawline: string): IIRCLine {
     final.arguments = pass2.split(' ');
   }
 
-  return final
+  return final;
 }