diff --git a/poky/scripts/lib/checklayer/__init__.py b/poky/scripts/lib/checklayer/__init__.py
index 0a0db2f..8271ed7 100644
--- a/poky/scripts/lib/checklayer/__init__.py
+++ b/poky/scripts/lib/checklayer/__init__.py
@@ -307,7 +307,7 @@
     cmd += 'bitbake '
     if failsafe:
         cmd += '-k '
-    cmd += '-S none world'
+    cmd += '-S lockedsigs world'
     sigs_file = os.path.join(builddir, 'locked-sigs.inc')
     if os.path.exists(sigs_file):
         os.unlink(sigs_file)