diff --git a/sources/python/main.py b/sources/python/main.py
index 7d9f1bc..87556f0 100644
--- a/sources/python/main.py
+++ b/sources/python/main.py
@@ -416,8 +416,8 @@ def start_debug():
             break
         time.sleep(1)
     else:
-        print(f"Port {port} still in use — killing...")
-        run(f"fuser -k {port}/tcp 2>/dev/null", timeout=5)
+        print(f"Port {port} still in use — force killing...")
+        run(f"ss -K 'sport = :{port}' 2>/dev/null; kill -9 $(ss -tlnp 'sport = :{port}' | grep -oP 'pid=\\K[0-9]+') 2>/dev/null", timeout=5)
         time.sleep(2)
     print(f"Tap proxy :{port} → {backend}")
     print(f"Log: {logdir}/tap-*.log")