diff --git a/Makefile b/Makefile
index d335b84..29310e3 100755
--- a/Makefile
+++ b/Makefile
@@ -13,11 +13,13 @@ LDFLAGS:= -ldflags "-s -w -X main.version=${VERSION}" -tags osusergo,netgo
 
 .PHONY: run install uninstall clean
 
-${TARGET}:
+${TARGET}: web/*.pug.go
 	go build -o bin/$@ ${LDFLAGS} ${FLAGS} cmd/$@/main.go
 
 web/*.pug.go: web/templates/*.pug
+ifeq (,$(wildcard $(shell go env GOPATH)/bin/jade))
 	go install github.com/Joker/jade/cmd/jade@latest
+endif
 	go generate web/web.go
 
 run: