moz.configure.diff

diff --git a/moz.configure b/moz.configure
index 2484ad553645..b15ef790e420 100755
--- a/moz.configure
+++ b/moz.configure
@@ -645,14 +645,14 @@ def config_status_deps(build_env, build_project):
     topsrcdir = build_env.topsrcdir
     topobjdir = build_env.topobjdir
 
-    if not build_env.topobjdir.endswith('js/src'):
+    if 'js/src' not in build_env.topobjdir:
         extra_deps = [
             os.path.join(topsrcdir, build_project, 'confvars.sh'),
             os.path.join(topobjdir, '.mozconfig.json'),
         ]
     else:
         # mozconfig changes may impact js configure.
-        extra_deps = [os.path.join(topobjdir[:-7], '.mozconfig.json')]
+        extra_deps = [os.path.join(topobjdir, '.mozconfig.json')]
 
     return list(__sandbox__._all_paths) + extra_deps + [
         os.path.join(topsrcdir, 'CLOBBER'),