diff --git a/twitter.py b/twitter.py
index 5901450..66a7042 100644
--- a/twitter.py
+++ b/twitter.py
@@ -193,6 +193,7 @@ def parse_tweet(tweet):
         "full_text": tweet["legacy"]["full_text"],
         "created_at": tweet["legacy"]["created_at"],
         "timestamp": int(datetime.strptime(tweet["legacy"]["created_at"], '%a %b %d %H:%M:%S %z %Y').timestamp()),
+        "reply_to": "",
         "media": [],
         "entities": [],
         "quoted": {},
@@ -201,6 +202,9 @@ def parse_tweet(tweet):
     }
     data["profile_image"] = data["profile_image"].replace("_normal.", ".")
     
+    if "in_reply_to_status_id_str" in tweet["legacy"]:
+        data["reply_to"] = tweet["legacy"]["in_reply_to_status_id_str"]
+    
     for m in tweet["legacy"]["entities"].get("media", []):
         data["media"].append(parse_media(m))
     
@@ -271,7 +275,7 @@ def main(config):
     check_interval = config.get("check_interval", 42)
     check_interval_slow = config.get("check_interval_slow", 600)
     slow_hours = config.get("slow_hours", [0, 1, 2, 3, 4, 5, 6])
-    last_check_time = defaultdict(lambda: 0.0)
+    last_check_time = defaultdict(float)
     
     while 1:
         json_data = {}