diff --git a/irc.py b/irc.py
index e257258..d4cce51 100644
--- a/irc.py
+++ b/irc.py
@@ -543,8 +543,13 @@ class PesterHandler(DefaultCommandHandler):
 
             # Server-set usermodes don't need to be passed.
             if (handles == ['']) & ( ('x' in m) | ('z' in m) | ('o' in m) | ('x' in m) )!=True:
-                self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
-                
+                try:
+                    self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
+                except IndexError as e:
+                    PchumLog.exception("modeSetIndexError: %s" % e)
+            #print("i = " + i)
+            #print("m = " + m)
+            #self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
                 #self.parent.userPresentUpdate.emit(handles[i], channel, m+":%s" % (op))
             # Passing an empty handle here might cause a crash.
             #except IndexError: