diff --git a/lib/bb/ui/crumbs/builder.py b/lib/bb/ui/crumbs/builder.py
index dd3ea95..cbcb3f1 100755
--- a/lib/bb/ui/crumbs/builder.py
+++ b/lib/bb/ui/crumbs/builder.py
@@ -557,6 +557,8 @@ class Builder(gtk.Window):
         self.handler.init_cooker()
         # set bb layers
         self.handler.set_bblayers(self.configuration.layers)
+        # Re-enable sanity checks
+        self.handler.enable_sanity()
         # set local configuration
         self.handler.set_machine(self.configuration.curr_mach)
         self.handler.set_package_format(self.configuration.curr_package_format)
diff --git a/lib/bb/ui/crumbs/hobeventhandler.py b/lib/bb/ui/crumbs/hobeventhandler.py
index ebfc388..c918aad 100644
--- a/lib/bb/ui/crumbs/hobeventhandler.py
+++ b/lib/bb/ui/crumbs/hobeventhandler.py
@@ -233,6 +233,9 @@ class HobHandler(gobject.GObject):
         inherits = inherits + " " + bbclass
         self.runCommand(["setVariable", "INHERIT", inherits])
 
+    def enable_sanity(self):
+        self.runCommand(["setVariable", "DISABLE_SANITY_CHECKS", "0"])
+
     def set_bblayers(self, bblayers):
         self.runCommand(["setVariable", "BBLAYERS_HOB", " ".join(bblayers)])