diff --git a/sericea/.config/waybar/config b/sericea/.config/waybar/config
index 4998dfaa..366d5991 100644
--- a/sericea/.config/waybar/config
+++ b/sericea/.config/waybar/config
@@ -33,7 +33,7 @@
 	"layer": "top",
 	"position": "bottom",
 	"height": 40,
-	"modules-left": ["idle_inhibitor", "gamemode", "cpu", "memory", "battery", "mpris"],
+	"modules-left": ["idle_inhibitor", "gamemode", "cpu", "memory", "custom/backup", "battery", "mpris"],
 	"modules-center": [],
 	"modules-right": ["network", "pulseaudio", "backlight", "clock"],
 	"clock": {
@@ -120,5 +120,10 @@
 			"paused": "⏸",
 			"stopped": "⏹"
 		}
+	},
+	"custom/backup": {
+		"interval": 60,
+		"format": "",
+		"exec": "systemctl is-failed backup.service"
 	}
 }]
diff --git a/sericea/.config/waybar/style.css b/sericea/.config/waybar/style.css
index 25c8da8e..428e7130 100644
--- a/sericea/.config/waybar/style.css
+++ b/sericea/.config/waybar/style.css
@@ -143,3 +143,8 @@ window#waybar {
 	color: #ebdbb2;
 	padding: 0 1em;
 }
+/* Custom modules */
+#custom-backup {
+	color: #fb4934;
+	padding: 0 1em;
+}