diff --git a/main.py b/main.py
index d0d2dec..b73abf7 100644
--- a/main.py
+++ b/main.py
@@ -49,7 +49,7 @@ def get_ip() -> str:
     ip = (flask.request.headers.get("X-Real-IP") if REVERSE_PROXY else flask.request.remote_addr) or "0.0.0.0"
 
     if ":" in ip:
-        ip = ip[:20] + ":/64"
+        ip = ":".join(ip.split(":")[:4]) + "::/64"
 
     return ip