diff --git a/shell/hooks/pre-commit.sh b/shell/hooks/pre-commit.sh
index 45efec25..558167eb 100755
--- a/shell/hooks/pre-commit.sh
+++ b/shell/hooks/pre-commit.sh
@@ -8,8 +8,18 @@ else
 fi
 
 # Stash only unstaged changes, keeping staged changes
+# We have to stash two times, because:
+# --keep-index also stashes the staged changes.
+# The staged changes end up in both the stage AND the stash.
+# https://overflow.hostux.net/questions/7650797/how-to-stash-only-unstaged-changes-in-git#60875082
 old_stash=$(git rev-parse --quiet --verify refs/stash)
-git stash push --quiet --keep-index -m 'Unstaged changes before pre-commit hook'
+git stash push --quiet --staged --message "Staged changes before pre-commit hook"
+git stash push --quiet --message "Unstaged changes before pre-commit hook"
+if git stash show "stash@{1}" 2>/dev/null; then
+  git stash pop --quiet --index "stash@{1}"
+else
+  git stash pop --quiet --index "stash@{0}"
+fi
 new_stash=$(git rev-parse --quiet --verify refs/stash)
 
 diff="git diff-index --name-only --cached $against --diff-filter d"