diff --git a/pkgs/build-support/emacs/trivial.nix b/pkgs/build-support/emacs/trivial.nix
index f1aa078df272..abe4d761c6b5 100644
--- a/pkgs/build-support/emacs/trivial.nix
+++ b/pkgs/build-support/emacs/trivial.nix
@@ -21,6 +21,7 @@ callPackage ./generic.nix envargs ({
     LISPDIR=$out/share/emacs/site-lisp
     install -d $LISPDIR
     install *.el *.elc $LISPDIR
+    emacs --batch -l package --eval "(package-generate-autoloads \"${args.pname}\" \"$LISPDIR\")"
 
     runHook postInstall
   '';