diff --git a/Dockerfile.compute-node b/Dockerfile.compute-node
index 0a4b85a8f2..6e1832375e 100644
--- a/Dockerfile.compute-node
+++ b/Dockerfile.compute-node
@@ -552,7 +552,8 @@ RUN wget https://gitlab.com/dalibo/postgresql_anonymizer/-/archive/1.1.0/postgre
     make -j $(getconf _NPROCESSORS_ONLN) install PG_CONFIG=/usr/local/pgsql/bin/pg_config && \
     echo 'trusted = true' >> /usr/local/pgsql/share/extension/anon.control && \
     find /usr/local/pgsql -type f | sort  > /after.txt && \
-    /bin/bash -c 'for from in $(comm -13 /before.txt /after.txt); do to=/extensions/anon/${from:17} && mkdir -p $(dirname ${to}) && cp -a ${from} ${to}; done'
+    /bin/bash -c 'for from in $(comm -13 /before.txt /after.txt); do to=/extensions/anon/${from:17} && mkdir -p $(dirname ${to}) && cp -a ${from} ${to}; done' && \
+    tar -zcvf /extensions/anon/share/extension/anon.tar.gz /extensions/anon/share/extension
 
 #########################################################################################
 #
@@ -753,7 +754,7 @@ FROM scratch AS postgres-extensions
 # COPY --from=postgres-cleanup-layer /usr/local/pgsql/lib             /usr/local/pgsql/lib
 # Custom extensions
 COPY --from=pg-anon-pg-build /extensions/anon/lib/ /extensions/anon/lib
-RUN --from=pg-anon-pg-build tar -zcvf /extensions/anon/share/extension/anon.tar.gz /extensions/anon/share/extension
+COPY --from=pg-anon-pg-build /extensions/anon/share/extension/anon.tar.gz /extensions/anon/share/extension/anon.tar.gz
 
 #########################################################################################
 #