diff --git a/cmd/apollo-worker/main.go b/cmd/apollo-worker/main.go
index 9908ffe..09e3c6d 100644
--- a/cmd/apollo-worker/main.go
+++ b/cmd/apollo-worker/main.go
@@ -103,7 +103,7 @@ func accountWorker(id int, rc *reddit.Client, db *sql.DB, logger *log.Logger, st
 			// Set latest message we alerted on
 			latestMsg := msgs.MessageListing.Messages[0]
 
-			latency := latestMsg.CreatedAt - float64(now)
+			latency := float64(now) - latestMsg.CreatedAt
 			statsd.Histogram("apollo.notification.latency", latency, []string{}, rate)
 
 			_, err = tx.Exec(`UPDATE accounts SET last_message_id = $1 WHERE id = $2`, latestMsg.FullName(), account.ID)