diff --git a/sopel_modules/SpiceBot_Events/System.py b/sopel_modules/SpiceBot_Events/System.py
index d6bdfd4..57edf0a 100644
--- a/sopel_modules/SpiceBot_Events/System.py
+++ b/sopel_modules/SpiceBot_Events/System.py
@@ -23,7 +23,7 @@ class botevents(object):
     rather than ``@module.event('1001')``
     """
 
-    usednumbers = ['0', '1001', '1002', '1003', '1004']
+    usednumbers = [0, 1001, 1002, 1003, 1004, 2000]
 
     BOT_WELCOME = '1001'
     BOT_READY = '1002'
@@ -31,12 +31,10 @@ class botevents(object):
     BOT_LOADED = '1004'
 
     def __getattr__(self, attr):
-        eventnumber = 0
-        while eventnumber not in self.usednumbers:
-            eventnumber = randint(2000, 9999)
-        setattr(self, str(attr).upper(), str(eventnumber))
-        self.usednumbers.append(str(eventnumber))
-        return eventnumber
+        ''' will only get called for undefined attributes '''
+        eventnumber = max(self.usednumbers) + 1
+        self.usednumbers.append(eventnumber)
+        setattr(self, str(attr).upper()) = str(eventnumber)
 
 
 def setup(bot):