diff --git a/src/proxy_server.py b/src/proxy_server.py
index fb9b1d8..f370ce2 100644
--- a/src/proxy_server.py
+++ b/src/proxy_server.py
@@ -642,10 +642,7 @@ def _is_likely_download(self, url: str, headers: dict) -> bool:
             ".pdf", ".doc", ".docx", ".ppt", ".pptx",
             ".wasm",
         }
-        for ext in large_exts:
-            if path.endswith(ext):
-                return True
-        return False
+        return path.endswith(tuple(large_exts))
 
     # ── Plain HTTP forwarding ─────────────────────────────────────