diff --git a/11/Dockerfile b/11/Dockerfile
index 9816d79045..c15a287bde 100644
--- a/11/Dockerfile
+++ b/11/Dockerfile
@@ -166,7 +166,6 @@ ENV PATH $PATH:/usr/lib/postgresql/$PG_MAJOR/bin
 ENV PGDATA /var/lib/postgresql/data
 # this 777 will be replaced by 700 at runtime (allows semi-arbitrary "--user" values)
 RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
-VOLUME /var/lib/postgresql/data
 
 COPY docker-entrypoint.sh /usr/local/bin/
 RUN ln -s usr/local/bin/docker-entrypoint.sh / # backwards compat