diff --git a/rioxarray/_io.py b/rioxarray/_io.py
index 930ab767..3bac1a15 100644
--- a/rioxarray/_io.py
+++ b/rioxarray/_io.py
@@ -650,7 +650,7 @@ def open_rasterio(
 
         from affine import Affine
         da = xr.open_rasterio('path_to_file.tif')
-        transform = Affine.from_gdal(*da.attrs['transform'])
+        transform = da.rio.transform()
         nx, ny = da.sizes['x'], da.sizes['y']
         x, y = np.meshgrid(np.arange(nx)+0.5, np.arange(ny)+0.5) * transform