diff --git a/yt/data_objects/index_subobjects/grid_patch.py b/yt/data_objects/index_subobjects/grid_patch.py
index 596f2c2b33c..de19f6285bf 100644
--- a/yt/data_objects/index_subobjects/grid_patch.py
+++ b/yt/data_objects/index_subobjects/grid_patch.py
@@ -338,8 +338,8 @@ def select_fcoords(self, dobj):
             return np.empty((0, 3), dtype="float64")
         coords = convert_mask_to_indices(mask, self._last_count).astype("float64")
         coords += 0.5
-        coords *= self.dds[None, :]
-        coords += self.LeftEdge[None, :]
+        coords *= self.dds.d[None, :]
+        coords += self.LeftEdge.d[None, :]
         return coords
 
     def select_fwidth(self, dobj):
@@ -348,7 +348,7 @@ def select_fwidth(self, dobj):
             return np.empty((0, 3), dtype="float64")
         coords = np.empty((count, 3), dtype="float64")
         for axis in range(3):
-            coords[:, axis] = self.dds[axis]
+            coords[:, axis] = self.dds.d[axis]
         return coords
 
     def select_ires(self, dobj):
diff --git a/yt/geometry/geometry_handler.py b/yt/geometry/geometry_handler.py
index c10c16bd6de..a1f80ec146e 100644
--- a/yt/geometry/geometry_handler.py
+++ b/yt/geometry/geometry_handler.py
@@ -327,7 +327,7 @@ def fcoords(self):
             c = obj.select_fcoords(self.dobj)
             if c.shape[0] == 0:
                 continue
-            ci[ind : ind + c.shape[0], :] = c
+            ci.d[ind : ind + c.shape[0], :] = c
             ind += c.shape[0]
         return ci
 
@@ -363,7 +363,8 @@ def fwidth(self):
             c = obj.select_fwidth(self.dobj)
             if c.shape[0] == 0:
                 continue
-            ci[ind : ind + c.shape[0], :] = c
+            ci.d[ind : ind + c.shape[0], :] = c
+
             ind += c.shape[0]
         return ci
 
@@ -419,7 +420,7 @@ def fcoords_vertex(self):
             c = obj.select_fcoords_vertex(self.dobj)
             if c.shape[0] == 0:
                 continue
-            ci[ind : ind + c.shape[0], :, :] = c
+            ci.d[ind : ind + c.shape[0], :, :] = c
             ind += c.shape[0]
         return ci