Hi, It seems native-comp-async always store the *.eln files in to the ~/.emacs.d/eln-cache/. We can switch the EMACSNATIVELOADPATH values to the head of native-comp-eln-load-path, then the *.eln will be stored in EMACSNATIVELOADPATH. This patch try to enable custom the eln cache directory. $ export EMACSNATIVELOADPATH=/tmp/eln-cache $ emacs  B.R. Lin