diff --git a/packages/firebase_messaging/firebase_messaging/ios/firebase_messaging/Sources/firebase_messaging/FLTFirebaseMessagingPlugin.m b/packages/firebase_messaging/firebase_messaging/ios/firebase_messaging/Sources/firebase_messaging/FLTFirebaseMessagingPlugin.m
index 74bbcb5142e0..bcb43b3b724f 100644
--- a/packages/firebase_messaging/firebase_messaging/ios/firebase_messaging/Sources/firebase_messaging/FLTFirebaseMessagingPlugin.m
+++ b/packages/firebase_messaging/firebase_messaging/ios/firebase_messaging/Sources/firebase_messaging/FLTFirebaseMessagingPlugin.m
@@ -214,7 +214,8 @@ - (void)messaging:(nonnull FIRMessaging *)messaging
 - (void)application_onDidFinishLaunchingNotification:(nonnull NSNotification *)notification {
   // Setup UIApplicationDelegate.
 #if TARGET_OS_OSX
-  NSDictionary *remoteNotification = notification.userInfo[NSApplicationLaunchUserNotificationKey];
+  UNNotificationResponse *notificationResponse = notification.userInfo[NSApplicationLaunchUserNotificationKey];
+  NSDictionary *remoteNotification = notificationResponse.notification.request.content.userInfo;
 #else
   NSDictionary *remoteNotification =
       notification.userInfo[UIApplicationLaunchOptionsRemoteNotificationKey];