diff --git a/mobile/locales/Makefile.in b/mobile/locales/Makefile.in
index 8b273209bc5..7abca187826 100644
--- a/mobile/locales/Makefile.in
+++ b/mobile/locales/Makefile.in
@@ -84,10 +84,10 @@ installers-%: clobber-% langpack-% repackage-zip-%
 
 ifdef MOZ_UPDATER
 libs:: $(addprefix $(LOCALE_SRCDIR)/,updater/updater.ini)
-	cat $< $(srcdir)/updater_append.ini | \
+	cat $< | \
 	  sed -e "s/^InfoText=/Info=/" -e "s/^TitleText=/Title=/" | \
-	  sed -e "s/%MOZ_APP_DISPLAYNAME%/$(MOZ_APP_DISPLAYNAME)/" | \
-	  sed -e "s/%AB_CD%/$(AB_CD)/" > $(FINAL_TARGET)/updater.ini
+	  sed -e "s/%MOZ_APP_DISPLAYNAME%/$(MOZ_APP_DISPLAYNAME)/" > \
+	  $(FINAL_TARGET)/updater.ini
 endif
 
 ident:
diff --git a/mobile/locales/updater_append.ini b/mobile/locales/updater_append.ini
deleted file mode 100644
index d5a9f05ac71..00000000000
--- a/mobile/locales/updater_append.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-
-; IMPORTANT: This file should always start with a newline in case a locale
-; provided updater.ini does not end with a newline.
-[Installation]
-Locale=%AB_CD%