diff --git a/mobile/src/main/java/be/mygod/vpnhotspot/ServiceNotification.kt b/mobile/src/main/java/be/mygod/vpnhotspot/ServiceNotification.kt
index 0830a3f1..8ae2650b 100644
--- a/mobile/src/main/java/be/mygod/vpnhotspot/ServiceNotification.kt
+++ b/mobile/src/main/java/be/mygod/vpnhotspot/ServiceNotification.kt
@@ -34,7 +34,7 @@ object ServiceNotification {
             context.resources.getQuantityString(R.plurals.notification_connected_devices, size, size, dev)
         }
         if (inactive.isNotEmpty()) {
-            lines += context.getString(R.string.notification_interfaces_inactive) + inactive.joinToString()
+            lines += context.getString(R.string.notification_interfaces_inactive, inactive.joinToString())
         }
         return if (lines.size <= 1) builder.setContentText(lines.singleOrNull()).build() else {
             val deviceCount = deviceCounts.sumBy { it.value }
diff --git a/mobile/src/main/res/values-zh-rCN/strings.xml b/mobile/src/main/res/values-zh-rCN/strings.xml
index 615d8312..c5c46b1c 100644
--- a/mobile/src/main/res/values-zh-rCN/strings.xml
+++ b/mobile/src/main/res/values-zh-rCN/strings.xml
@@ -125,7 +125,7 @@
     <plurals name="notification_interfaces">
         <item quantity="other">%d 个接口</item>
     </plurals>
-    <string name="notification_interfaces_inactive">不活跃：</string>
+    <string name="notification_interfaces_inactive">不活跃：%s</string>
 
     <string name="failure_reason_unknown">未知 #%d</string>
     <string name="exception_interface_not_found">错误：未找到下游接口</string>
diff --git a/mobile/src/main/res/values/strings.xml b/mobile/src/main/res/values/strings.xml
index 70098cbb..ee7c4a8a 100644
--- a/mobile/src/main/res/values/strings.xml
+++ b/mobile/src/main/res/values/strings.xml
@@ -134,7 +134,7 @@
         <item quantity="one">%d interface</item>
         <item quantity="other">%d interfaces</item>
     </plurals>
-    <string name="notification_interfaces_inactive">"Inactive: "</string>
+    <string name="notification_interfaces_inactive">Inactive: %s</string>
 
     <string name="failure_reason_unknown">unknown #%d</string>
     <string name="exception_interface_not_found">Fatal: Downstream interface not found</string>