diff --git a/changelog.d/20251209_162100_whole_object_configurable.rst b/changelog.d/20251209_162100_whole_object_configurable.rst
deleted file mode 100644
index 8f42083..0000000
--- a/changelog.d/20251209_162100_whole_object_configurable.rst
+++ /dev/null
@@ -1,3 +0,0 @@
-.. A new scriv changelog fragment.
-
-- Make whole object diff configurable (PL-134246)
diff --git a/src/backy/sources/ceph/rbd.py b/src/backy/sources/ceph/rbd.py
index 036a4dd..7bd74a0 100644
--- a/src/backy/sources/ceph/rbd.py
+++ b/src/backy/sources/ceph/rbd.py
@@ -13,11 +13,9 @@
 
 class RBDClient(object):
     log: BoundLogger
-    use_whole_object_diff: bool
 
-    def __init__(self, log: BoundLogger, use_whole_object_diff=False):
+    def __init__(self, log: BoundLogger):
         self.log = log.bind(subsystem="rbd")
-        self.use_whole_object_diff = False
 
     def _ceph_cli(self, cmdline, encoding="utf-8") -> str:
         # This wrapper function for the `rbd` command is only used for
@@ -69,8 +67,6 @@ def _rbd_stream(self, cmd: list[str]) -> Iterator[IO[bytes]]:
 
     @functools.cached_property
     def _supports_whole_object(self):
-        if not self.use_whole_object_diff:
-            return False
         return "--whole-object" in self._rbd(["help", "export-diff"])
 
     def exists(self, snapspec):
diff --git a/src/backy/sources/ceph/source.py b/src/backy/sources/ceph/source.py
index ccc8056..cd4c3d1 100644
--- a/src/backy/sources/ceph/source.py
+++ b/src/backy/sources/ceph/source.py
@@ -28,9 +28,7 @@ def __init__(self, config: dict, log: BoundLogger):
         self.image = config["image"]
         self.always_full = config.get("full-always", False)
         self.log = log.bind(subsystem="ceph")
-        self.rbd = RBDClient(
-            self.log, config.get("use-full-object-diff", False)
-        )
+        self.rbd = RBDClient(self.log)
 
     def ready(self) -> bool:
         """Check whether the source can be backed up.
@@ -148,10 +146,8 @@ def verify(self, target) -> bool:
             return backy.utils.files_are_roughly_equal(
                 source,
                 target,
-                report=(
-                    lambda s, t, o: self.revision.backup.quarantine.add_report(
-                        QuarantineReport(s, t, o)
-                    )
+                report=lambda s, t, o: self.revision.backup.quarantine.add_report(
+                    QuarantineReport(s, t, o)
                 ),
             )