diff --git a/app/src/main/java/eu/faircode/netguard/ActivitySettings.java b/app/src/main/java/eu/faircode/netguard/ActivitySettings.java
index 4c4a6421..f43cc198 100644
--- a/app/src/main/java/eu/faircode/netguard/ActivitySettings.java
+++ b/app/src/main/java/eu/faircode/netguard/ActivitySettings.java
@@ -123,7 +123,7 @@ public class ActivitySettings extends AppCompatActivity implements SharedPrefere
         List<WifiConfiguration> configs = wm.getConfiguredNetworks();
         if (configs != null)
             for (WifiConfiguration config : configs)
-                listSSID.add(config.SSID);
+                listSSID.add(config.SSID == null ? "NULL" : config.SSID);
         pref_wifi_homes.setEntries(listSSID.toArray(new CharSequence[0]));
         pref_wifi_homes.setEntryValues(listSSID.toArray(new CharSequence[0]));
 
diff --git a/app/src/main/java/eu/faircode/netguard/Util.java b/app/src/main/java/eu/faircode/netguard/Util.java
index ff679ea2..aa6eba57 100644
--- a/app/src/main/java/eu/faircode/netguard/Util.java
+++ b/app/src/main/java/eu/faircode/netguard/Util.java
@@ -111,7 +111,8 @@ public class Util {
 
     public static String getWifiSSID(Context context) {
         WifiManager wm = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
-        return wm.getConnectionInfo().getSSID();
+        String ssid = wm.getConnectionInfo().getSSID();
+        return (ssid == null ? "NULL" : ssid);
     }
 
     public static int getNetworkType(Context context) {