diff --git a/containers/jug/dev.Dockerfile b/containers/jug/dev.Dockerfile
index f2d7a9fee1ccfb2a03d5f4fd004cd3fbe64fe4e0..4af53eb8a7b6d14320bf4068aae94da97ffdde15 100644
--- a/containers/jug/dev.Dockerfile
+++ b/containers/jug/dev.Dockerfile
@@ -54,7 +54,7 @@ RUN declare -A target=(                                                 \
  && spack config blame packages                                         \
  && spack config --scope user add "config:suppress_gpg_warnings:true"   \
  && spack config --scope user add "config:build_jobs:${jobs}"           \
- && spack config --scope user add "config:db_lock_timeout:${jobs}0"     \
+ && spack config --scope user add "config:db_lock_timeout:${jobs}00"    \
  && spack config --scope user add "config:source_cache:/var/cache/spack" \
  && spack config --scope user add "config:install_tree:root:/opt/software" \
  && spack config --scope user add "config:ccache:true"                  \