diff --git a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/FallbackUpstreamMonitor.kt b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/FallbackUpstreamMonitor.kt
index 135e1594..b6eb2c50 100644
--- a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/FallbackUpstreamMonitor.kt
+++ b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/FallbackUpstreamMonitor.kt
@@ -13,7 +13,7 @@ abstract class FallbackUpstreamMonitor private constructor() : UpstreamMonitor()
 
         private fun generateMonitor(): UpstreamMonitor {
             val upstream = app.pref.getString(KEY, null)
-            return if (upstream.isNullOrEmpty()) DefaultNetworkMonitor else InterfaceMonitor(upstream!!)
+            return if (upstream.isNullOrEmpty()) DefaultNetworkMonitor else InterfaceMonitor(upstream)
         }
         private var monitor = generateMonitor()
 
diff --git a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/UpstreamMonitor.kt b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/UpstreamMonitor.kt
index 8c30f5fa..1994f93f 100644
--- a/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/UpstreamMonitor.kt
+++ b/mobile/src/main/java/be/mygod/vpnhotspot/net/monitor/UpstreamMonitor.kt
@@ -17,7 +17,7 @@ abstract class UpstreamMonitor {
 
         private fun generateMonitor(): UpstreamMonitor {
             val upstream = app.pref.getString(KEY, null)
-            return if (upstream.isNullOrEmpty()) VpnMonitor else InterfaceMonitor(upstream!!)
+            return if (upstream.isNullOrEmpty()) VpnMonitor else InterfaceMonitor(upstream)
         }
         private var monitor = generateMonitor()