diff --git a/containers/jug/dev.Dockerfile b/containers/jug/dev.Dockerfile
index 1f4162d2f1a8c8eb46f297f5d0fa667577705bba..71f202e4feeb07621ed00f138a49f24772d945cb 100644
--- a/containers/jug/dev.Dockerfile
+++ b/containers/jug/dev.Dockerfile
@@ -148,7 +148,7 @@ set -e
 export CCACHE_DIR=/ccache
 source ${SPACK_ROOT}/share/spack/setup-env.sh
 mkdir -p /var/cache/spack/blobs/sha256/
-find /var/cache/spack/blobs/sha256/ -atime +7 -delete
+find /var/cache/spack/blobs/sha256/ -ignore_readdir_race -atime +7 -delete
 spack buildcache update-index eics3rw
 spack env activate --dir ${SPACK_ENV}
 spack concretize --fresh --force --quiet