diff --git a/protocols/unreal.py b/protocols/unreal.py
index 4349f5e..80ce97d 100644
--- a/protocols/unreal.py
+++ b/protocols/unreal.py
@@ -222,6 +222,13 @@ class UnrealProtocol(TS6BaseProtocol):
         self.irc.applyModes(target, modes)
 
         if utils.isChannel(target):
+
+            # Make sure we expand any PUIDs when sending outgoing modes...
+            for idx, mode in enumerate(modes):
+                if mode[0][-1] in self.irc.prefixmodes:
+                    log.debug('(%s) mode: expanding PUID of mode %s', self.irc.name, str(mode))
+                    modes[idx] = (mode[0], self._expandPUID(mode[1]))
+
             # The MODE command is used for channel mode changes only
             ts = ts or self.irc.channels[self.irc.toLower(target)].ts