diff --git a/pkg/loki/config_wrapper.go b/pkg/loki/config_wrapper.go
index 5522fe686de3..c64d78cb1a50 100644
--- a/pkg/loki/config_wrapper.go
+++ b/pkg/loki/config_wrapper.go
@@ -169,6 +169,7 @@ func applyPathPrefixDefaults(r *ConfigWrapper, defaults ConfigWrapper) {
 func appendLoopbackInterface(r *ConfigWrapper) {
 	if loopbackIface, err := loki_net.LoopbackInterfaceName(); err == nil {
 		r.Ingester.LifecyclerConfig.InfNames = append(r.Ingester.LifecyclerConfig.InfNames, loopbackIface)
+		r.Config.Frontend.FrontendV2.InfNames = append(r.Config.Frontend.FrontendV2.InfNames, loopbackIface)
 	}
 }
 
diff --git a/pkg/loki/config_wrapper_test.go b/pkg/loki/config_wrapper_test.go
index 46e480fa5a2c..2dad9c47d5c4 100644
--- a/pkg/loki/config_wrapper_test.go
+++ b/pkg/loki/config_wrapper_test.go
@@ -993,3 +993,25 @@ query_scheduler:
 		assert.Equal(t, config.Ingester.LifecyclerConfig.InfNames, []string{"eth0", "en0", defaultIface})
 	})
 }
+
+func TestLoopbackAppendingToFrontendV2(t *testing.T) {
+	defaultIface, err := loki_net.LoopbackInterfaceName()
+	assert.NoError(t, err)
+	assert.NotEmpty(t, defaultIface)
+
+	t.Run("by default, loopback should be in FrontendV2 interface names", func(t *testing.T) {
+		config, _, err := configWrapperFromYAML(t, minimalConfig, []string{})
+		assert.NoError(t, err)
+		assert.Equal(t, []string{"eth0", "en0", defaultIface}, config.Frontend.FrontendV2.InfNames)
+	})
+
+	t.Run("loopback shouldn't be in FrontendV2 interface names if set by user", func(t *testing.T) {
+		yamlContent := `frontend:
+  instance_interface_names:
+  - otheriface`
+
+		config, _, err := configWrapperFromYAML(t, yamlContent, []string{})
+		assert.NoError(t, err)
+		assert.Equal(t, []string{"otheriface"}, config.Frontend.FrontendV2.InfNames)
+	})
+}