diff --git a/rules/manager.go b/rules/manager.go
index 21e455c844..8aa33d775b 100644
--- a/rules/manager.go
+++ b/rules/manager.go
@@ -743,7 +743,7 @@ func (g *Group) RestoreForState(ts time.Time) {
 
 }
 
-// Equals return if two groups are the same
+// Equals return if two groups are the same.
 func (g *Group) Equals(ng *Group) bool {
 	if g.name != ng.name {
 		return false
diff --git a/rules/manager_test.go b/rules/manager_test.go
index 8fc8513bd9..c955068cb2 100644
--- a/rules/manager_test.go
+++ b/rules/manager_test.go
@@ -742,7 +742,7 @@ func TestUpdate(t *testing.T) {
 		ogs[h] = g
 	}
 
-	// Update interval and reload
+	// Update interval and reload.
 	for i, g := range rgs.Groups {
 		if g.Interval != 0 {
 			rgs.Groups[i].Interval = g.Interval * 2
@@ -753,7 +753,7 @@ func TestUpdate(t *testing.T) {
 	}
 	reloadAndValidate(rgs, t, tmpFile, ruleManager, expected, ogs)
 
-	// Change group rules and reload
+	// Change group rules and reload.
 	for i, g := range rgs.Groups {
 		for j, r := range g.Rules {
 			rgs.Groups[i].Rules[j].Expr = fmt.Sprintf("%s * 0", r.Expr)