diff --git a/Makefile b/Makefile
index 98d57051..4b625767 100644
--- a/Makefile
+++ b/Makefile
@@ -783,5 +783,6 @@ dist: release-apk iosrelease-ipa
 dist-test: dist
 	@tar -xf tildefriends-$(VERSION_NUMBER).tar.xz
 	@$(MAKE) -C tildefriends-$(VERSION_NUMBER)/ debug release
+	@docker build tildefriends-$(VERSION_NUMBER)/
 	@rm -rf tildefriends-$(VERSION_NUMBER)
 .PHONY: dist-test