diff --git a/mozilla/browser/components/prefwindow/jar.mn b/mozilla/browser/components/prefwindow/jar.mn
index 0e0e339a60b..9f72c4e360a 100644
--- a/mozilla/browser/components/prefwindow/jar.mn
+++ b/mozilla/browser/components/prefwindow/jar.mn
@@ -39,7 +39,6 @@ en-US.jar:
     locale/en-US/browser/pref/pref-extensions.dtd          (locale/pref-extensions.dtd)
     locale/en-US/browser/pref/pref-features.dtd            (locale/pref-features.dtd)
     locale/en-US/browser/pref/pref-features-images.dtd      (locale/pref-features-images.dtd)
-    locale/en-US/browser/pref/pref-features-images.properties (locale/pref-features-images.properties)
     locale/en-US/browser/pref/pref-fonts.dtd               (locale/pref-fonts.dtd)
     locale/en-US/browser/pref/pref-privacy.dtd             (locale/pref-privacy.dtd)
     locale/en-US/browser/pref/pref-themes.dtd              (locale/pref-themes.dtd)