diff --git a/configs/advanced/common.yaml b/configs/advanced/common.yaml
index 5613c44c88..c7ff5ae19a 100644
--- a/configs/advanced/common.yaml
+++ b/configs/advanced/common.yaml
@@ -10,5 +10,5 @@
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 
 common:
-  defaultPartitionName: "_default"
-  defaultIndexName: "_default_idx"
+  defaultPartitionName: "_default"  # default partition name for a collection
+  defaultIndexName: "_default_idx"  # default index name