diff --git a/sources/python/main.py b/sources/python/main.py
index 26aa249..d4fff3e 100644
--- a/sources/python/main.py
+++ b/sources/python/main.py
@@ -404,6 +404,9 @@ def start_debug():
     
     tap_script = f"{BASE}/app/tap-proxy.py"
     
+    # Kill any stale tap proxy on this port
+    run(f"kill -9 $(ss -tlnp 'sport = :{port}' | grep -oP 'pid=\\K[0-9]+') 2>/dev/null", timeout=5)
+
     # Stop container, start tap
     print(f"\nStopping wallarm-{n['name']}...")
     run(f"docker stop wallarm-{n['name']} 2>/dev/null", timeout=10)