diff --git a/Dockerfile b/Dockerfile
index 9431706..4579710 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,12 @@
 FROM golang:alpine as builder
+ARG IMG_PATH=/opt/pics
+ARG EXHAUST_PATH=/opt/exhaust
 RUN apk update ;\
     apk add alpine-sdk ;\
     git clone https://github.com/webp-sh/webp_server_go /build ;\
     cd /build ;\
-    sed -i 's/\/path\/to\/exhaust/\/opt\/exhaust/g' config.json ;\
-    sed -i 's/\/path\/to\/pics/\/opt\/pics/g' config.json ;\
+    sed -i "s|.\/pics|${IMG_PATH}|g" config.json ;\
+    sed -i "s|\"\"|\"${EXHAUST_PATH}\"|g" config.json ;\
     sed -i 's/127.0.0.1/0.0.0.0/g' config.json
 WORKDIR /build
 RUN go build -o webp-server .
@@ -13,4 +15,4 @@ COPY --from=builder /build/webp-server  /usr/bin/webp-server
 COPY --from=builder /build/config.json /etc/config.json
 WORKDIR /opt
 VOLUME /opt/exhaust
-CMD ["/usr/bin/webp-server", "--config", "/etc/config.json"]
+CMD ["/usr/bin/webp-server", "--config", "/etc/config.json"]
\ No newline at end of file