diff --git a/Dockerfile b/Dockerfile
index e986128..5f26681 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -71,6 +71,7 @@ RUN set -e; \
   true
 
 ENV SHELL="/bin/bash"
+SHELL [ "/bin/bash", "-c" ]
 
 COPY ./rootfs/usr/local/bin/pkmgr /usr/local/bin/pkmgr
 COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/gosu
@@ -93,7 +94,7 @@ RUN echo "Running pre-package commands"; \
 
 RUN echo "Setting up and installing packages"; \
   $SHELL_OPTS; \
-  if [ -n "${PACK_LIST}" ];then echo "Installing packages: $PACK_LIST";pkmgr install ${PACK_LIST};fi; \
+  if [ -n "${PACK_LIST}" ];then echo "Installing packages: $PACK_LIST";echo "${PACK_LIST}" >/root/docker/setup/packages.txt;pkmgr install ${PACK_LIST};fi; \
   echo ""
 
 RUN echo "Initializing packages before copying files to image"; \