diff --git a/pkg/loki/loki.go b/pkg/loki/loki.go
index 2cbdaa261094..3dfb18bd7688 100644
--- a/pkg/loki/loki.go
+++ b/pkg/loki/loki.go
@@ -159,6 +159,9 @@ func (c *Config) Validate() error {
 	if err := c.Ingester.Validate(); err != nil {
 		return errors.Wrap(err, "invalid ingester config")
 	}
+	if err := c.LimitsConfig.Validate(); err != nil {
+		return errors.Wrap(err, "invalid limits config")
+	}
 	if err := c.Worker.Validate(util_log.Logger); err != nil {
 		return errors.Wrap(err, "invalid storage config")
 	}
diff --git a/pkg/validation/limits.go b/pkg/validation/limits.go
index eeec28876f9e..d0294a1dee78 100644
--- a/pkg/validation/limits.go
+++ b/pkg/validation/limits.go
@@ -209,13 +209,7 @@ func (l *Limits) Validate() error {
 				return fmt.Errorf("retention period must be >= 24h was %s", rule.Period)
 			}
 			// populate matchers during validation
-			l.StreamRetention[i] = StreamRetention{
-				Period:   rule.Period,
-				Priority: rule.Priority,
-				Selector: rule.Selector,
-				Matchers: matchers,
-			}
-
+			l.StreamRetention[i].Matchers = matchers
 		}
 	}
 	return nil