diff --git a/modules.py b/modules.py
index a22a7b5e3f666fa4acfbc9c8123317bede2484e8..cd5106abb01a6247b09a5a31910e92d4c1968f59 100755
--- a/modules.py
+++ b/modules.py
@@ -74,6 +74,8 @@ if __name__ == "__main__":
                 continue
             first_module_path = os.path.join(software_path, software_versions[0])
             software_url, software_description = get_module_description(first_module_path)
+            if software_description=="":
+                 software_description="Old module, description not available. Use command `ml show NAME_MODULE`"
             HTML_SOURCE_DATA[dir][soft] = {'versions': [],
                                            'url': software_url,
                                            'description': software_description}