diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -4,6 +4,10 @@ Release History
dev
---

**API Changes (Backward Incompatible)**

-

diff --git a/src/hyperframe/frame.py b/src/hyperframe/frame.py
@@ -457,8 +457,11 @@ def _body_repr(self) -> str:
        return f"settings={self.settings}"

    def serialize_body(self) -> bytes:
-        return b"".join([_STRUCT_HL.pack(setting & 0xFF, value)
-                         for setting, value in self.settings.items()])

    def parse_body(self, data: memoryview) -> None:
        if "ACK" in self.flags and len(data) > 0:

diff --git a/tests/test_frames.py b/tests/test_frames.py
@@ -426,6 +426,29 @@ def test_short_settings_frame_errors(self):
        with pytest.raises(InvalidDataError):
            decode_frame(self.serialized[:-2])


class TestPushPromiseFrame:
    def test_repr(self):
-Original file line number
+Diff line change
@@ Expand Up / @@ -4,6 +4,10 @@ Release History @@
     dev
     ---
     **API Changes (Backward Incompatible)**
     -
@@ Expand Down @@