diff --git a/docker/selfhosted.Dockerfile b/docker/selfhosted.Dockerfile
index ed0bb0b..17f7af7 100644
--- a/docker/selfhosted.Dockerfile
+++ b/docker/selfhosted.Dockerfile
@@ -73,6 +73,7 @@ RUN mix release
 
 FROM ${RUNNER_IMAGE}
 
+ARG TARGETPLATFORM
 ARG PORT=8945
 
 COPY --from=builder ./usr/local/bin/ffmpeg /usr/bin/ffmpeg