diff --git a/src/inc/clients/irc.js b/src/inc/clients/irc.js
index 9e08589..f6466e8 100644
--- a/src/inc/clients/irc.js
+++ b/src/inc/clients/irc.js
@@ -40,33 +40,33 @@ class irc {
         // WHOIS BEGIN
         case "307": // Rizon Account
           tmpuser = {};
-          if(this.server.user.has( msg.params[1]))
-            tmpuser = this.server.user.get( msg.params[1] );
-          tmpuser.account = msg.params[1];
+          if(this.server.user.has( msg.params[1].toLowerCase() ))
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
+          tmpuser.account = msg.params[1].toLowerCase();
           tmpuser.registered = true;
-          this.server.user.set( msg.params[1], tmpuser );
+          this.server.user.set( msg.params[1].toLowerCase(), tmpuser );
           break;
         case "311": // first
           tmpuser = {};
-          if(this.server.user.has( msg.params[1] ))
-            tmpuser = this.server.user.get( msg.params[1] );
-          tmpuser.nickname = msg.params[1];
+          if (this.server.user.has( msg.params[1].toLowerCase() ))
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
+          tmpuser.nickname = msg.params[1].toLowerCase();
           tmpuser.username = msg.params[2];
           tmpuser.hostname = msg.params[3];
           tmpuser.realname = msg.params[5];
-          this.server.user.set( msg.params[1], tmpuser );
+          this.server.user.set( msg.params[1].toLowerCase(), tmpuser );
           break;
         case "313": // Oper
           tmpuser = {};
-          if(this.server.user.has( msg.params[1] ))
-            tmpuser = this.server.user.get( msg.params[1] );
+          if (this.server.user.has( msg.params[1].toLowerCase() ))
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
           tmpuser.oper = true;
-          this.server.user.set( msg.params[1], tmpuser );
+          this.server.user.set( msg.params[1].toLowerCase(), tmpuser );
           break;
         case "318": // last (check Data)
           tmpuser = {};
-          if(this.server.user.has( msg.params[1] ))
-            tmpuser = this.server.user.get( msg.params[1] );
+          if (this.server.user.has( msg.params[1].toLowerCase() ))
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
           tmpuser = {
             nickname: tmpuser.nickname || false,
             username: tmpuser.username || false,
@@ -82,8 +82,8 @@ class irc {
         case "319": // Chanlist Todo
           let tmpchan = new Map();
           tmpuser = {};
-          if(this.server.user.has( msg.params[1] )) {
-            tmpuser = this.server.user.get( msg.params[1] );
+          if (this.server.user.has( msg.params[1].toLowerCase() )) {
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
             if(tmpuser.channels)
               tmpchan = tmpuser.channels;
           }
@@ -95,15 +95,15 @@ class irc {
           }
           tmpuser.channels = tmpchan;
 
-          this.server.user.set( msg.params[1], tmpuser );
+          this.server.user.set( msg.params[1].toLowerCase(), tmpuser );
           break;
         case "330": // Quarknet
           tmpuser = {};
-          if(this.server.user.has( msg.params[1] ))
-            tmpuser = this.server.user.get( msg.params[1] );
+          if (this.server.user.has( msg.params[1].toLowerCase() ))
+            tmpuser = this.server.user.get( msg.params[1].toLowerCase() );
           tmpuser.account = msg.params[2];
           tmpuser.registered = true;
-          this.server.user.set( msg.params[1], tmpuser );
+          this.server.user.set( msg.params[1].toLowerCase(), tmpuser );
           break;
         // WHOIS END
         case "001": // welcome