diff --git a/cosmo-all/Dockerfile b/cosmo-all/Dockerfile
index a7075ab..0c6cd55 100644
--- a/cosmo-all/Dockerfile
+++ b/cosmo-all/Dockerfile
@@ -31,6 +31,7 @@ RUN --mount=type=cache,id=cosmo-build-all,target=/cosmopolitan/o,sharing=locked
  && touch -d '@2222222222' "o/$mode/test/libc/calls/getgroups_test.com.runs" \
  && touch -d '@2222222222' "o/$mode/test/libc/calls/getpriority_test.com.runs" \
 # this one can fail in nested podman: \
+ && mkdir -p "o/$mode/test/libc/stdio" \
  && touch -d '@2222222222' "o/$mode/test/libc/stdio/tmpfile_test.com.runs" \
 \
  && ./makeit MODE="$mode" all \