diff --git a/zefie_wtvp_minisrv/includes/classes/WTVIRC.js b/zefie_wtvp_minisrv/includes/classes/WTVIRC.js
index 163daddb..fd293456 100644
--- a/zefie_wtvp_minisrv/includes/classes/WTVIRC.js
+++ b/zefie_wtvp_minisrv/includes/classes/WTVIRC.js
@@ -4048,7 +4048,7 @@ class WTVIRC {
     processChannelModes(nickname, channel, modes, params, socket) {
         // Split modes into array and process each character        
         let modeChars = modes.split('');
-        let supportedChannelModes = this.supported_channel_modes.split(',').join('').split('');
+        let supportedChannelModes = (this.supported_channel_modes.split(',').join('') + this.supported_prefixes[0]).split('');
         var serverModeMsg = '';
         var target = null;
         if (socket.isserver) {
@@ -4140,7 +4140,9 @@ class WTVIRC {
                 continue;
             }
             if (!supportedChannelModes.includes(mc)) {
-                socket.write(`:${this.servername} 472 ${nickname} ${channel} :Unknown channel mode char: ${mc}\r\n`);
+                if (!socket.isserver) {
+                    socket.write(`:${this.servername} 472 ${nickname} ${channel} :Unknown channel mode char: ${mc}\r\n`);
+                }
                 continue;
             }
             modeStr += mc;