diff --git a/scripts/lib/scriptutils.py b/scripts/lib/scriptutils.py
index 33e197a22c..654ca90227 100644
--- a/scripts/lib/scriptutils.py
+++ b/scripts/lib/scriptutils.py
@@ -211,7 +211,9 @@ def fetch_url(tinfoil, srcuri, srcrev, destdir, logger, preserve_tmp=False, mirr
             res = tinfoil.build_targets(fetchrecipepn,
                                         'do_unpack',
                                         handle_events=True,
-                                        extra_events=['bb.fetch2.MissingChecksumEvent'],
+                                        # Support BitBake before and after the bb.fetch2 rename.
+                                        extra_events=['bb.fetch2.MissingChecksumEvent',
+                                                      'bb.fetch.MissingChecksumEvent'],
                                         event_callback=eventhandler)
             if not res:
                 raise FetchUrlFailure(srcuri)