diff --git a/monai/transforms/spatial/array.py b/monai/transforms/spatial/array.py
index c49f4e6479..cb80c2036b 100644
--- a/monai/transforms/spatial/array.py
+++ b/monai/transforms/spatial/array.py
@@ -526,7 +526,7 @@ def __call__(
             align_corners=self.align_corners if align_corners is None else align_corners,
             reverse_indexing=True,
         )
-        output: torch.Tensor = xform(img_t.unsqueeze(0), transform_t, spatial_size=output_shape).squeeze(0)
+        output: torch.Tensor = xform(img_t.unsqueeze(0), transform_t, spatial_size=output_shape).float().squeeze(0)
         self._rotation_matrix = transform
         out: NdarrayOrTensor
         out, *_ = convert_to_dst_type(output, dst=img, dtype=output.dtype)