diff --git a/xarray/core/dataset.py b/xarray/core/dataset.py
index 596b14f4a13..01596290389 100644
--- a/xarray/core/dataset.py
+++ b/xarray/core/dataset.py
@@ -6733,7 +6733,7 @@ def interpolate_na(
         from xarray.core.missing import _apply_over_vars_with_dim, interp_na
 
         if keep_attrs is None:
-            keep_attrs = _get_keep_attrs(default=False)
+            keep_attrs = _get_keep_attrs(default=True)
 
         new = _apply_over_vars_with_dim(
             interp_na,