diff --git a/ctl/server.go b/ctl/server.go
index c3be7ba5e..4d55bfc11 100644
--- a/ctl/server.go
+++ b/ctl/server.go
@@ -112,5 +112,5 @@ func BuildServerFlags(cmd *cobra.Command, srv *server.Command) {
 	flags.Uint16Var(&srv.Config.Postgres.ConnectionLimit, "postgres.connection-limit", srv.Config.Postgres.ConnectionLimit, "Maximum number of simultaneous postgres connections to allow. (set 0 to disable)")
 
 	// Disk Usage refresh rate in minutes for ui/usage http endpoint
-	flags.IntVar(&srv.Config.DiskUsage.RefreshRate, "disk-usage-refresh-rate", srv.Config.DiskUsage.RefreshRate, "Number in minutes between recalculations of disk usage cache")
+	flags.IntVar(&srv.Config.DiskUsage.Interval, "disk-usage-interval", srv.Config.DiskUsage.Interval, "Number in minutes between recalculations of disk usage cache")
 }
diff --git a/server/config.go b/server/config.go
index a73a2eb50..3e5629f89 100644
--- a/server/config.go
+++ b/server/config.go
@@ -227,7 +227,7 @@ type Config struct {
 
 	// Disk Usage refresh rate in minutes for ui/usage http endpoint
 	DiskUsage struct {
-		RefreshRate int `toml:"disk-ussage-refresh-rate"`
+		Interval int `toml:"disk-usage-interval"`
 	}
 }
 
@@ -364,7 +364,7 @@ func NewConfig() *Config {
 	c.Etcd.PeerCertFile = ""
 	c.Etcd.PeerKeyFile = ""
 
-	c.DiskUsage.RefreshRate = 6 * 60 // 6 hours
+	c.DiskUsage.Interval = 6 * 60 // 6 hours
 
 	return c
 }
diff --git a/server/server.go b/server/server.go
index d4034b620..ec34a4194 100644
--- a/server/server.go
+++ b/server/server.go
@@ -277,7 +277,7 @@ func (m *Command) Start() (err error) {
 		}
 	}
 
-	go m.API.RefreshUsageCache(m.Config.DiskUsage.RefreshRate)
+	go m.API.RefreshUsageCache(m.Config.DiskUsage.Interval)
 
 	_ = testhook.Opened(pilosa.NewAuditor(), m, nil)
 	close(m.Started)