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+[⬅️ Back to `index`](index.md)
+
+# Colon prefixing
+
+In some commands (like PRIVMSG, TOPIC, USER, NOTICE, etc), the client needs to add a colon before the content (NOT after the command)
+
+❌ Your client shouldn't do this:
+```
+↗️ PRIVMSG foo this is a very cool message
+🔀 nick!ident@host PRIVMSG foo :this
+```
+✅ Here's what it should do:
+```
+↗️ PRIVMSG foo :this is a very cool message
+🔀 nick!ident@host PRIVMSG foo :this is a very cool message
+```
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