diff --git a/aiohttp/streams.py b/aiohttp/streams.py
index 72d26e607d7..8d089fb8e1d 100644
--- a/aiohttp/streams.py
+++ b/aiohttp/streams.py
@@ -549,7 +549,7 @@ def _read_nowait(self, n: int) -> bytes:
             count = len(self._buffer)
             if count == 1:
                 return self._read_nowait_chunk(-1)
-            return b"".join([self._read_nowait_chunk(-1) for _ in range(count)])
+            return b"".join(self._read_nowait_chunk(-1) for _ in range(count))
 
         chunks: list[bytes] = []
         while self._buffer: