diff --git a/pkgs/build-support/emacs/wrapper.sh b/pkgs/build-support/emacs/wrapper.sh
index c18960c06fc3..44762bd4582b 100644
--- a/pkgs/build-support/emacs/wrapper.sh
+++ b/pkgs/build-support/emacs/wrapper.sh
@@ -23,6 +23,11 @@ else
     newLoadPath+=("")
 fi
 
+# NOTE: Even though we treat EMACSNATIVELOADPATH like EMACSLOADPATH in
+# this wrapper, empty elements in EMACSNATIVELOADPATH have no special
+# meaning for Emacs.  Only non-empty elements in EMACSNATIVELOADPATH
+# will be prepended to native-comp-eln-load-path.
+# https://git.savannah.gnu.org/cgit/emacs.git/tree/lisp/startup.el?id=3685387e609753293c4518be75e77c659c3b2d8d#n599
 if [[ -n $EMACSNATIVELOADPATH ]]
 then
     while read -rd: entry