diff --git a/configuration/persistence.md b/configuration/persistence.md
index c6dd0f1b81..58d743ad32 100644
--- a/configuration/persistence.md
+++ b/configuration/persistence.md
@@ -194,7 +194,7 @@ You may specify a different persistence service by appending a String as an opti
 To persist an Item called `Lights` in an rrd4j database, you would enter the following:
 `Lights.persist("rrd4j")`
 To get the average temperature over the last 5 minues from the Item called `Temperature` in the influxdb persistence service, you would use:
-`Temperature.averageSince(now.minusMinutes(5,"influxdb"))`
+`Temperature.averageSince(now.minusMinutes(5),"influxdb")`
 
 The most useful methods of the HistoricItem object returned by some queries, are `.state` and `.getTimestamp`