--- a/browser/locales/Makefile.in
+++ b/browser/locales/Makefile.in
@@ -217,10 +217,10 @@ analyze-langpack-%:
 	$(if $(shell unzip -qql $(ABS_DIST)/$(LANGPACK) manifest.json),$(info Found manifest.json),$(error manifest.json is missing))
 	$(if $(shell unzip -qql $(ABS_DIST)/$(LANGPACK) chrome.manifest),$(error Found chrome.manifest),$(info Not packaging chrome.manifest))
 
 check-clobber-l10n-%: AB_CD=$*
 check-clobber-l10n-%:
 	$(MAKE) clobber-x-test
 	$(RM) -r $(DIST)/l10n-stage $(DIST)/xpi-stage/locale-$(AB_CD)
 	$(RM) -r $(DIST)/*.$(AB_CD).*
-	$(RM) -r $(UNPACKED_INSTALLER)
+	$(RM) -r $(UNPACKED_INSTALLER) $(ABS_DIST)/$(LANGPACK)
 	$(RM) -rf $(DIST)/install/sea/*.$(AB_CD).*