diff --git a/Dockerfile b/Dockerfile
index 7f1d5bc..16e87d6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,9 +3,9 @@ FROM golang:alpine AS build-env
 RUN apk --no-cache add build-base git gcc
 RUN cd /tmp; git clone https://github.com/ThomasLeister/prosody-filer.git
 RUN cd /tmp/prosody-filer; \
-    VERSIONSTRING="$(git describe --tags --exact-match || git rev-parse --short HEAD)"; \
-    echo "Building version ${VERSIONSTRING} of Prosody-Filer ..." \
-   ./build.sh
+    VERSIONSTRING="$(git describe --tags --exact-match 2> /dev/null || git rev-parse --short HEAD)"; \
+    echo "Building version ${VERSIONSTRING} of Prosody-Filer ..."; \
+    CGO_ENABLED=0 GOOS=linux go build -a -ldflags "-extldflags '-static' -w -s -X main.versionString=${VERSIONSTRING}" prosody-filer.go;
 
 # final stage
 FROM alpine