diff --git a/app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt b/app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt
index df3ec608d..57d193ef7 100644
--- a/app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt
+++ b/app/src/main/java/com/vitorpamplona/amethyst/LocalPreferences.kt
@@ -12,6 +12,7 @@ import com.vitorpamplona.amethyst.model.KIND3_FOLLOWS
 import com.vitorpamplona.amethyst.model.RelaySetupInfo
 import com.vitorpamplona.amethyst.model.hexToByteArray
 import com.vitorpamplona.amethyst.service.HttpClient
+import com.vitorpamplona.amethyst.service.checkNotInMainThread
 import com.vitorpamplona.amethyst.service.model.ContactListEvent
 import com.vitorpamplona.amethyst.service.model.Event
 import com.vitorpamplona.amethyst.service.model.Event.Companion.getRefinedEvent
@@ -199,6 +200,8 @@ object LocalPreferences {
     }
 
     fun saveToEncryptedStorage(account: Account) {
+        checkNotInMainThread()
+
         val prefs = encryptedPreferences(account.userProfile().pubkeyNpub())
         prefs.edit().apply {
             account.loggedIn.privKey?.let { putString(PrefKeys.NOSTR_PRIVKEY, it.toHex()) }