diff --git a/MotoNrEnabler/src/org/lineageos/motorola/nrenabler/NrEnablerService.kt b/MotoNrEnabler/src/org/lineageos/motorola/nrenabler/NrEnablerService.kt
index 4aea5a3..4644ba2 100644
--- a/MotoNrEnabler/src/org/lineageos/motorola/nrenabler/NrEnablerService.kt
+++ b/MotoNrEnabler/src/org/lineageos/motorola/nrenabler/NrEnablerService.kt
@@ -13,7 +13,6 @@ import android.content.IntentFilter
 import android.os.Handler
 import android.os.IBinder
 import android.telephony.CarrierConfigManager
-import android.telephony.SubscriptionInfo
 import android.telephony.SubscriptionManager
 import android.telephony.TelephonyManager
 import android.util.Log
@@ -82,7 +81,8 @@ class NrEnablerService : Service() {
     }
 
     private fun validatePhoneId(phoneId: Int): Boolean {
-        val phoneCount = getSystemService(TelephonyManager::class.java).activeModemCount
+        val phoneCount =
+            getSystemService(TelephonyManager::class.java)?.activeModemCount ?: return false
         return phoneId in 0 until phoneCount
     }