diff --git a/xarray/core/groupby.py b/xarray/core/groupby.py
index fec8954c9e2..54499c16e90 100644
--- a/xarray/core/groupby.py
+++ b/xarray/core/groupby.py
@@ -579,7 +579,7 @@ def _maybe_unstack(self, obj):
             obj._indexes = filter_indexes_from_coords(obj._indexes, set(obj.coords))
         return obj
 
-    def _flox_reduce(self, dim, **kwargs):
+    def _flox_reduce(self, dim, keep_attrs=None, **kwargs):
         """Adaptor function that translates our groupby API to that of flox."""
         from flox.xarray import xarray_reduce
 
@@ -587,6 +587,9 @@ def _flox_reduce(self, dim, **kwargs):
 
         obj = self._original_obj
 
+        if keep_attrs is None:
+            keep_attrs = _get_keep_attrs(default=False)
+
         # preserve current strategy (approximately) for dask groupby.
         # We want to control the default anyway to prevent surprises
         # if flox decides to change its default
@@ -664,6 +667,7 @@ def _flox_reduce(self, dim, **kwargs):
             dim=dim,
             expected_groups=expected_groups,
             isbin=isbin,
+            keep_attrs=keep_attrs,
             **kwargs,
         )