diff --git a/xee/ext.py b/xee/ext.py
index b6122e0..50ccf01 100644
--- a/xee/ext.py
+++ b/xee/ext.py
@@ -506,6 +506,7 @@ def open_store_variable(self, name: str) -> xarray.Variable:
     x_dim_name, y_dim_name = self.dimension_names
     dimensions = [self.primary_dim_name, x_dim_name, y_dim_name]
     attrs = self._make_attrs_valid(self._band_attrs(name))
+    attrs['crs'] = str(self.crs)
     encoding = {
         'source': attrs['id'],
         'scale_factor': arr.scale,