diff --git a/assets/linux.mk b/assets/linux.mk
index 4d8ba4c..2383bb9 100644
--- a/assets/linux.mk
+++ b/assets/linux.mk
@@ -18,9 +18,9 @@ build : $(outfile) $(outfile).sha256sum
 $(outfile) :
 	${MAKE} work
 ifeq ($(use_docker),false)
-	(cd work/librewolf-$(version)-$(source_release) && ./mach build && ./mach package)
+	(cd work/librewolf-$(version)-$(source_release) && ./mach build && cat browser/locales/shipped-locales | xargs ./mach package-multi-locale --locales && ./mach package)
 else
-	docker run --rm -v $(shell pwd)/work:/work:rw librewolf/bsys5-image-$(distro) sh -c "cd /work/librewolf-$(version)-$(source_release) && ./mach build && ./mach package"
+	docker run --rm -v $(shell pwd)/work:/work:rw librewolf/bsys5-image-$(distro) sh -c "cd /work/librewolf-$(version)-$(source_release) && ./mach build && cat browser/locales/shipped-locales | xargs ./mach package-multi-locale --locales && ./mach package"
 endif
 	cp -v work/librewolf-$(version)-$(source_release)/obj-x86_64-pc-linux-gnu/dist/librewolf-$(version)-$(source_release).en-US.linux-x86_64.tar.bz2 $(outfile)
 
diff --git a/assets/macos.mk b/assets/macos.mk
index 200047a..5340556 100644
--- a/assets/macos.mk
+++ b/assets/macos.mk
@@ -18,9 +18,9 @@ $(outfile) $(outfile).sha256sum :
 	${MAKE} work
 	sed "s/_ARCH_/$(arch)/g" < assets/macos.mozconfig > work/librewolf-$(version)-$(source_release)/mozconfig
 ifeq ($(use_docker),false)
-	(cd work/librewolf-$(version)-$(source_release) && ./mach build && ./mach package)
+	(cd work/librewolf-$(version)-$(source_release) && ./mach build && ./mach build && cat browser/locales/shipped-locales | xargs ./mach package-multi-locale --locales && ./mach package)
 else
-	docker run --rm -v $(shell pwd)/work:/work:rw librewolf/bsys5-image-macos-$(arch) sh -c "cd /work/librewolf-$(version)-$(source_release) && ./mach build && ./mach package"
+	docker run --rm -v $(shell pwd)/work:/work:rw librewolf/bsys5-image-macos-$(arch) sh -c "cd /work/librewolf-$(version)-$(source_release) && ./mach build && cat browser/locales/shipped-locales | xargs ./mach package-multi-locale --locales && ./mach package"
 endif
 	cp -v work/librewolf-$(version)-$(source_release)/obj-$(arch)-apple-darwin/dist/librewolf-$(version)-$(source_release).en-US.mac.dmg $(outfile)
 	sha256sum $(outfile) > $(outfile).sha256sum