diff --git a/poky/scripts/lib/devtool/standard.py b/poky/scripts/lib/devtool/standard.py
index 86ca77f..88a6ecd 100644
--- a/poky/scripts/lib/devtool/standard.py
+++ b/poky/scripts/lib/devtool/standard.py
@@ -567,6 +567,8 @@
         logger.debug('writing append file %s' % appendfile)
         with open(appendfile, 'a') as f:
             f.write('###--- _extract_source\n')
+            f.write('deltask do_recipe_qa\n')
+            f.write('deltask do_recipe_qa_setscene\n')
             f.write('ERROR_QA:remove = "patch-fuzz"\n')
             f.write('DEVTOOL_TEMPDIR = "%s"\n' % tempdir)
             f.write('DEVTOOL_DEVBRANCH = "%s"\n' % devbranch)
diff --git a/poky/scripts/lib/devtool/upgrade.py b/poky/scripts/lib/devtool/upgrade.py
index 6c4a62b..e015a85 100644
--- a/poky/scripts/lib/devtool/upgrade.py
+++ b/poky/scripts/lib/devtool/upgrade.py
@@ -35,6 +35,8 @@
     dirs = scriptutils.filter_src_subdirs(tmpdir)
     if len(dirs) == 1:
         srctree = os.path.join(tmpdir, dirs[0])
+    else:
+        raise DevtoolError("Cannot determine where the source tree is after unpacking in {}: {}".format(tmpdir,dirs))
     return srctree
 
 def _copy_source_code(orig, dest):