diff --git a/code/modules/modular_computers/file_system/programs/chatroom/ntnrc_client.dm b/code/modules/modular_computers/file_system/programs/chatroom/ntnrc_client.dm
index 66182437869..9cd92c5fe6d 100644
--- a/code/modules/modular_computers/file_system/programs/chatroom/ntnrc_client.dm
+++ b/code/modules/modular_computers/file_system/programs/chatroom/ntnrc_client.dm
@@ -59,6 +59,8 @@
 		if("PRG_speak")
 			if(!channel || isnull(active_channel))
 				return
+			if(src in channel.muted_clients) // Make sure we aren't muted
+				return
 			var/message = reject_bad_chattext(params["message"], MESSAGE_SIZE)
 			if(!message)
 				return
diff --git a/tgui/packages/tgui/interfaces/NtosNetChat.jsx b/tgui/packages/tgui/interfaces/NtosNetChat.jsx
index aab73f826a1..650520dd3a5 100644
--- a/tgui/packages/tgui/interfaces/NtosNetChat.jsx
+++ b/tgui/packages/tgui/interfaces/NtosNetChat.jsx
@@ -179,6 +179,7 @@ export const NtosNetChat = (props) => {
                     'Message ' + title
                   }
                   fluid
+                  disabled={this_client && this_client.muted}
                   selfClear
                   mt={1}
                   onEnter={(e, value) =>