diff --git a/Dockerfile b/Dockerfile
index 1244a48..b6e7a95 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,9 @@ WORKDIR /usr/src/MOP3
 
 COPY . .
 
-RUN ./aux/devel.sh
+ARG bt
+
+RUN ./aux/devel.sh $bt
 
 FROM scratch
 COPY --from=builder /usr/src/MOP3/mop3.iso /mop3.iso