diff --git a/rules/manager.go b/rules/manager.go
index 1dc72cc87..f5b095898 100644
--- a/rules/manager.go
+++ b/rules/manager.go
@@ -38,7 +38,7 @@ import (
 	"github.com/prometheus/prometheus/storage"
 )
 
-// RuleHealth describes the health state of a target.
+// RuleHealth describes the health state of a rule.
 type RuleHealth string
 
 // The possible health states of a rule based on the last execution.
@@ -73,7 +73,7 @@ type Metrics struct {
 	groupRules          *prometheus.GaugeVec
 }
 
-// NewGroupMetrics makes a new Metrics and registers them with then provided registerer,
+// NewGroupMetrics makes a new Metrics and registers them with the provided registerer,
 // if not nil.
 func NewGroupMetrics(reg prometheus.Registerer) *Metrics {
 	m := &Metrics{