diff --git a/src/conf.py b/src/conf.py
index 1e27d29bb..641d7dae5 100644
--- a/src/conf.py
+++ b/src/conf.py
@@ -374,7 +374,7 @@ registerChannelValue(supybot.reply.format, 'time',
 def timestamp(t):
     if t is None:
         t = time.time()
-    elif isinstance(t, float):
+    elif isinstance(t, float) or isinstance(t, int):
         t = time.localtime(t)
     format = get(supybot.reply.format.time, dynamic.channel)
     return time.strftime(format, t)