diff --git a/Dockerfile b/Dockerfile
index a1477cb..0c3ae00 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,7 @@ RUN set -ex \
      && make deps
 RUN set -ex \
      && cd $GOPATH/src/wal-g/ \
+     && echo $(git rev-parse --short HEAD)
      && GOBIN=/usr/local/bin make pg_install
 RUN wal-g --help
 RUN ls -la /usr/local/bin/wal-g*