diff --git a/bare/config/devel/qemu.bset b/bare/config/devel/qemu.bset
index e15339d..db147fe 100644
--- a/bare/config/devel/qemu.bset
+++ b/bare/config/devel/qemu.bset
@@ -4,6 +4,11 @@
 
 %define release 1
 
+#
+# Name of the package.
+#
+package: qemu-%{qemu_version}-%{_host}-%{release}
+
 #
 # A magic internal path that would break if changes in the defaults.mc
 # macro file are made.
diff --git a/source-builder/sb/setbuilder.py b/source-builder/sb/setbuilder.py
index e213d03..d899916 100644
--- a/source-builder/sb/setbuilder.py
+++ b/source-builder/sb/setbuilder.py
@@ -197,7 +197,7 @@ class buildset:
         if (self.opts.get_arg('--bset-tar-file') or self.opts.canadian_cross()) \
            and not _build.macros.get('%{_disable_packaging}'):
             path.mkdir(tardir)
-            tar = path.join(tardir, _build.config.expand('%s.tar.bz2' % (self.bset_pkg)))
+            tar = path.join(tardir, _build.config.expand('%s.tar.bz2' % (_build.main_package().name())))
             log.notice('tarball: %s' % (os.path.relpath(path.host(tar))))
             if not self.opts.dry_run():
                 tmproot = _build.config.expand('%{_tmproot}')