diff --git a/images/bromite-build/Dockerfile b/images/bromite-build/Dockerfile
index c496132..978e51a 100644
--- a/images/bromite-build/Dockerfile
+++ b/images/bromite-build/Dockerfile
@@ -1,8 +1,6 @@
-ARG VERSION
+ARG BROMITE_SHA
 
-FROM uazo/bromite:$VERSION
-ARG VERSION
-ENV VERSION=$VERSION
+FROM uazo/bromite:$BROMITE_SHA
 
 USER lg
 
@@ -20,5 +18,3 @@ RUN sudo chmod +x ./start-build.sh \
     && \
     ./pre-start.sh
 
-CMD ./start-build.sh
-