diff --git a/Dockerfile b/Dockerfile
index b173d73..92c290a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ RUN apk add --update --no-cache \
     gcc git make musl-dev \
     && go mod download \
     && go get -u github.com/gobuffalo/packr/v2/packr2 \
-    && packr2 && packr2 clean && make \
+    && make \
     && /tun2socks-src/bin/tun2socks -version
 
 FROM alpine:latest
@@ -15,7 +15,7 @@ FROM alpine:latest
 COPY ./entrypoint.sh /
 COPY --from=builder /tun2socks-src/bin/tun2socks /tun2socks
 
-RUN apk add --update --no-cache iptables iproute2 ca-certificates\
+RUN apk add --update --no-cache iptables iproute2 \
     && chmod +x /entrypoint.sh
 
 ENV TUN tun0
diff --git a/Makefile b/Makefile
index 45a9eb5..7a65330 100644
--- a/Makefile
+++ b/Makefile
@@ -7,10 +7,9 @@ GOBUILD=go build -trimpath -ldflags '-s -w  -extldflags "-static" -X "github.com
 all: build
 
 build:
+	cd component/session && packr2
 	cd cmd && $(GOBUILD) -v -tags $(BUILDTAGS) -o $(BINDIR)/$(NAME)
-
-debug:
-	cd cmd && $(GOBUILD) -v -tags $(BUILDTAGS) -race -o $(BINDIR)/$(NAME)
+	cd component/session && packr2 clean
 
 clean:
 	rm -rf $(BINDIR)