diff --git a/iolite_plugins/update_build_metadata.py b/iolite_plugins/update_build_metadata.py
index 7b67ac8..c37576b 100644
--- a/iolite_plugins/update_build_metadata.py
+++ b/iolite_plugins/update_build_metadata.py
@@ -31,6 +31,9 @@ def hash_djb2(b):
             checksum = hash_djb2(plugin_data)
             checksum_with_salt = hash_djb2(bytes("{}{}".format(checksum, sys.argv[1]), "ascii"))
             p["checksum"] = checksum_with_salt
+      else:
+        print("Plugin '{}' not found. Skipping checksum generation...".format(dll_filepath))
+
 
   with open(json_filepath, "w") as plugins_json:
       json.dump(plugins, plugins_json, indent=2)