diff --git a/pygeoapi/api.py b/pygeoapi/api.py
index d1674f21b..f521e789e 100644
--- a/pygeoapi/api.py
+++ b/pygeoapi/api.py
@@ -1231,12 +1231,13 @@ def describe_collections(self, request: Union[APIRequest, Any],
                     else:
                         collection['crs'] = [p.crs]
                         collection['extent']['spatial'] = {
-                            'bbox': [
+                            'bbox': [[
                                 p._coverage_properties['bbox'][0],
                                 p._coverage_properties['bbox'][1],
                                 p._coverage_properties['bbox'][2],
                                 p._coverage_properties['bbox'][3]
-                            ],
+                            ]],
+                            'crs': p.crs,
                             'grid': [{
                                 'cellsCount': p._coverage_properties['width'],
                                 'resolution': p._coverage_properties['resx']