diff --git a/browser/locales/Makefile.in b/browser/locales/Makefile.in
--- a/browser/locales/Makefile.in
+++ b/browser/locales/Makefile.in
@@ -188,15 +188,17 @@ endif
 
 clobber-%:
 	$(RM) -rf $(DIST)/xpi-stage/locale-$*
 
 libs-%:
 	$(NSINSTALL) -D $(DIST)/install
+ifndef LIBXUL_SDK
 	@$(MAKE) -C ../../toolkit/locales libs-$* BOTH_MANIFESTS=1
+	@$(MAKE) -C ../../extensions/spellcheck/locales AB_CD=$* XPI_NAME=locale-$* BOTH_MANIFESTS=1
+endif
 	@$(MAKE) -C ../../extensions/reporter/locales libs AB_CD=$* XPI_NAME=locale-$* BOTH_MANIFESTS=1
-	@$(MAKE) -C ../../extensions/spellcheck/locales AB_CD=$* XPI_NAME=locale-$* BOTH_MANIFESTS=1
 	@$(MAKE) libs AB_CD=$* XPI_NAME=locale-$* PREF_DIR=defaults/pref BOTH_MANIFESTS=1
 ifdef MOZ_BRANDING_DIRECTORY
 	@$(MAKE) -C $(DEPTH)/$(MOZ_BRANDING_DIRECTORY)/locales AB_CD=$* XPI_NAME=locale-$* BOTH_MANIFESTS=1
 endif
 	@$(MAKE) tests AB_CD=$*