diff --git a/examples/metainfo/metainfo_metrics.py b/examples/metainfo/metainfo_metrics.py
index 45326af05a81065e0794d2f483a81494fd524b39..2bdb6844fbbca0c710bdd77b2cf27fe028c1f9ea 100644
--- a/examples/metainfo/metainfo_metrics.py
+++ b/examples/metainfo/metainfo_metrics.py
@@ -1,3 +1,7 @@
+# This example reads all Python define metainfo and computes
+# basic metrics on how many sections and properties are defined
+# per package
+
 from nomad.metainfo import Section, Property, Quantity, Package
 from nomad.cli.dev import _all_metainfo_packages