diff --git a/common.py b/common.py
index 2106b77..726eafe 100644
--- a/common.py
+++ b/common.py
@@ -13,7 +13,7 @@ ADMIN = [int(i) for i in os.getenv("BOT_ADMIN", "").split(",") if i]
 
 PIXIV_REFRESH_TOKEN = os.getenv("PIXIV_REFRESH_TOKEN")
 
-WEBHOOK = os.getenv("WEBHOOK", False)
+WEBHOOK = os.getenv("WEBHOOK").strip().lower() in ("true", "yes", "1")
 if WEBHOOK:
     WEBHOOK_LISTEN = os.getenv("WEBHOOK_LISTEN", "0.0.0.0")
     WEBHOOK_PORT = int(os.getenv("WEBHOOK_PORT", 8443))