diff --git a/play-services-auth-api-phone/core/src/main/kotlin/org/microg/gms/auth/phone/SmsRetrieverCore.kt b/play-services-auth-api-phone/core/src/main/kotlin/org/microg/gms/auth/phone/SmsRetrieverCore.kt
index 1969359ec2..b1f7353bf4 100644
--- a/play-services-auth-api-phone/core/src/main/kotlin/org/microg/gms/auth/phone/SmsRetrieverCore.kt
+++ b/play-services-auth-api-phone/core/src/main/kotlin/org/microg/gms/auth/phone/SmsRetrieverCore.kt
@@ -234,7 +234,7 @@ class SmsRetrieverCore(private val context: Context, override val lifecycle: Lif
         if (this::smsBroadcastReceiver.isInitialized) context.unregisterReceiver(smsBroadcastReceiver)
         if (this::timeoutBroadcastReceiver.isInitialized) context.unregisterReceiver(timeoutBroadcastReceiver)
 
-        for (request in requests.values) {
+        for (request in requests.values.toList()) {
             sendReply(request, Status(CommonStatusCodes.TIMEOUT))
         }