diff --git a/Makefile b/Makefile
index 3a11acd..741c106 100644
--- a/Makefile
+++ b/Makefile
@@ -57,6 +57,15 @@ Dockerfile.%: unit/version
 			-e 's,@@UNIT_VERSION@@,$(UNIT_VERSION),g' \
 			> $@
 
+Dockerfile.php7.3: unit/version
+	@echo "===> Building Dockerfile.php7.3"
+	cat unit/pkg/docker/Dockerfile.tmpl | sed \
+			-e 's,FROM debian:stretch-slim,FROM php:7.3-cli,g' \
+			-e 's,stretch,buster,g' \
+			-e 's,@@UNITPACKAGES@@,$(MODULE_php7.3),g' \
+			-e 's,@@UNIT_VERSION@@,$(UNIT_VERSION),g' \
+			> Dockerfile.php7.3
+
 build-%: Dockerfile.%
 	docker build -t unit:$(VERSION)-$* -f Dockerfile.$* .