diff --git a/Dockerfile b/Dockerfile
index 34d0e02..b8b3f40 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ RUN go mod download
 COPY dist ./dist
 COPY html.go html.go
 COPY main.go main.go
-RUN go build -ldflags "-w -s" -o json-gen main.go
+RUN go build -ldflags "-w -s" -o json-gen .
 
 # runtime
 FROM alpine:latest