diff --git a/src/com/android/phone/NetworkSelectListPreference.java b/src/com/android/phone/NetworkSelectListPreference.java
index 51a678d..b1d5544 100644
--- a/src/com/android/phone/NetworkSelectListPreference.java
+++ b/src/com/android/phone/NetworkSelectListPreference.java
@@ -99,7 +99,8 @@
         new AsyncTask<Void, Void, List<String>>() {
             @Override
             protected List<String> doInBackground(Void... voids) {
-                return Arrays.asList(telephonyManager.getForbiddenPlmns());
+                String[] forbiddenPlmns = telephonyManager.getForbiddenPlmns();
+                return forbiddenPlmns != null ? Arrays.asList(forbiddenPlmns) : null;
             }
 
             @Override
diff --git a/src/com/android/phone/NetworkSelectSetting.java b/src/com/android/phone/NetworkSelectSetting.java
index 96e4a26..1d0f040 100644
--- a/src/com/android/phone/NetworkSelectSetting.java
+++ b/src/com/android/phone/NetworkSelectSetting.java
@@ -160,7 +160,8 @@
         new AsyncTask<Void, Void, List<String>>() {
             @Override
             protected List<String> doInBackground(Void... voids) {
-                return Arrays.asList(mTelephonyManager.getForbiddenPlmns());
+                String[] forbiddenPlmns = mTelephonyManager.getForbiddenPlmns();
+                return forbiddenPlmns != null ? Arrays.asList(forbiddenPlmns) : null;
             }
 
             @Override