diff --git a/telethon/utils.py b/telethon/utils.py
index 3588e044..74f7988e 100644
--- a/telethon/utils.py
+++ b/telethon/utils.py
@@ -438,9 +438,9 @@ def get_input_media(
         if media.SUBCLASS_OF_ID == 0xfaf846f4:  # crc32(b'InputMedia')
             return media
         elif media.SUBCLASS_OF_ID == 0x846363e0:  # crc32(b'InputPhoto')
-            return types.InputMediaPhoto(media, ttl_seconds=ttl, spoiler=media.spoiler)
+            return types.InputMediaPhoto(media, ttl_seconds=ttl)
         elif media.SUBCLASS_OF_ID == 0xf33fdb68:  # crc32(b'InputDocument')
-            return types.InputMediaDocument(media, ttl_seconds=ttl, spoiler=media.spoiler)
+            return types.InputMediaDocument(media, ttl_seconds=ttl)
     except AttributeError:
         _raise_cast_fail(media, 'InputMedia')