diff --git a/src/types.nim b/src/types.nim
index 087acb2..b5353b5 100644
--- a/src/types.nim
+++ b/src/types.nim
@@ -177,6 +177,8 @@ type
     available*: bool
     tombstone*: string
     location*: string
+    ## Unused, needed for backwards compat
+    source*: string
     stats*: TweetStats
     retweet*: Option[Tweet]
     attribution*: Option[User]