diff --git a/Dockerfile b/Dockerfile
index f473fd3e..e174b3e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ WORKDIR /app/
 COPY ./ ./
 RUN apk add --no-cache bash git curl go gcc musl-dev; \
     curl -s -O 'https://raw.githubusercontent.com/libsgh/PanIndex-build-action/main/build.sh'; \
-    bash build.sh ARG0
+    bash build.sh ${ARG0}
 
 FROM alpine:edge
 MAINTAINER libsgh