diff --git a/package/android/src/main/java/com/mrousavy/camera/CameraDevicesManager.kt b/package/android/src/main/java/com/mrousavy/camera/CameraDevicesManager.kt
index a627397..4434ece 100644
--- a/package/android/src/main/java/com/mrousavy/camera/CameraDevicesManager.kt
+++ b/package/android/src/main/java/com/mrousavy/camera/CameraDevicesManager.kt
@@ -79,7 +79,7 @@ class CameraDevicesManager(private val reactContext: ReactApplicationContext) :
 
     return mutableMapOf(
       "availableCameraDevices" to devices,
-      "userPreferredCameraDevice" to preferredDevice
+      "userPreferredCameraDevice" to preferredDevice?.toHashMap()
     )
   }