diff --git a/stdlib/@tests/stubtest_allowlists/common.txt b/stdlib/@tests/stubtest_allowlists/common.txt
index 81b590c54..41905256b 100644
--- a/stdlib/@tests/stubtest_allowlists/common.txt
+++ b/stdlib/@tests/stubtest_allowlists/common.txt
@@ -68,7 +68,6 @@ xml.sax.expatreader
 _thread.RLock
 _threading_local._localimpl.localargs
 _threading_local._localimpl.locallock
-bz2.BZ2File.peek
 codecs.StreamReader.charbuffertype
 codecs.StreamReader.seek
 codecs.StreamWriter.seek
diff --git a/stdlib/bz2.pyi b/stdlib/bz2.pyi
index ee5587031..2f869f969 100644
--- a/stdlib/bz2.pyi
+++ b/stdlib/bz2.pyi
@@ -126,6 +126,7 @@ class BZ2File(BaseStream, IO[bytes]):
     def readline(self, size: SupportsIndex = -1) -> bytes: ...  # type: ignore[override]
     def readinto(self, b: WriteableBuffer) -> int: ...
     def readlines(self, size: SupportsIndex = -1) -> list[bytes]: ...
+    def peek(self, n: int = 0) -> bytes: ...
     def seek(self, offset: int, whence: int = 0) -> int: ...
     def write(self, data: ReadableBuffer) -> int: ...
     def writelines(self, seq: Iterable[ReadableBuffer]) -> None: ...