diff --git a/xarray/core/dataset.py b/xarray/core/dataset.py
index 129f0c0f7a7..c314eb41458 100644
--- a/xarray/core/dataset.py
+++ b/xarray/core/dataset.py
@@ -4152,7 +4152,7 @@ def combine_first(self, other: "Dataset") -> "Dataset":
 
         Returns
         -------
-        DataArray
+        Dataset
         """
         out = ops.fillna(self, other, join="outer", dataset_join="outer")
         return out