diff --git a/git-stash.sh b/git-stash.sh
index 1114005ce2829011cde2e6de608a2b90df355fc9..fc8f8ae6401dddcceaa82f9e9c748f5c185536d6 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -322,10 +322,9 @@ push_stash () {
 
 		if test $# != 0
 		then
-			git reset -q -- "$@"
-			git ls-files -z --modified -- "$@" |
+			git add -u -- "$@" |
 			git checkout-index -z --force --stdin
-			git clean --force -q -d -- "$@"
+			git diff-index -p --cached --binary HEAD -- "$@" | git apply --index -R
 		else
 			git reset --hard -q
 		fi
diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index 39c7f2ebd740db097d67b12a68fa35f3fa884fc8..aefde7b1726bdc8d71d2b78e313e29daa2b31a24 100755
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -1064,4 +1064,36 @@ test_expect_success 'stash -k -- <pathspec> leaves unstaged files intact' '
 	test foo,bar = $(cat foo),$(cat bar)
 '
 
+test_expect_success 'stash -- <subdir> leaves untracked files in subdir intact' '
+	git reset &&
+	>subdir/untracked &&
+	>subdir/tracked1 &&
+	>subdir/tracked2 &&
+	git add subdir/tracked* &&
+	git stash -- subdir/ &&
+	test_path_is_missing subdir/tracked1 &&
+	test_path_is_missing subdir/tracked2 &&
+	test_path_is_file subdir/untracked &&
+	git stash pop &&
+	test_path_is_file subdir/tracked1 &&
+	test_path_is_file subdir/tracked2 &&
+	test_path_is_file subdir/untracked
+'
+
+test_expect_success 'stash -- <subdir> works with binary files' '
+	git reset &&
+	>subdir/untracked &&
+	>subdir/tracked &&
+	cp "$TEST_DIRECTORY"/test-binary-1.png subdir/tracked-binary &&
+	git add subdir/tracked* &&
+	git stash -- subdir/ &&
+	test_path_is_missing subdir/tracked &&
+	test_path_is_missing subdir/tracked-binary &&
+	test_path_is_file subdir/untracked &&
+	git stash pop &&
+	test_path_is_file subdir/tracked &&
+	test_path_is_file subdir/tracked-binary &&
+	test_path_is_file subdir/untracked
+'
+
 test_done