diff --git a/containers/jug/dev.Dockerfile b/containers/jug/dev.Dockerfile
index fd8ba7b35c90280ff8519bc753135aba779b7c5b..acd54f9972d6f6d3327a0638483981799a672c61 100644
--- a/containers/jug/dev.Dockerfile
+++ b/containers/jug/dev.Dockerfile
@@ -166,6 +166,7 @@ fi
 if [ -n ${EICRECON_VERSION} ] ; then
   spack config add "packages:eicrecon::require:['@git.${EICRECON_VERSION}']"
 fi
+cat ${SPACK_ENV}/spack.yaml
 spack concretize --force --fresh
 make --jobs ${jobs} --keep-going --directory /opt/spack-environment SPACK_ENV=${SPACK_ENV} BUILDCACHE_MIRROR="local eics3rw"
 ccache --show-stats