diff --git a/install.sh b/install.sh
index d6dec9c..209b2f2 100755
--- a/install.sh
+++ b/install.sh
@@ -332,7 +332,7 @@ download_latest_release_binary() {
 
 	local tmp_dir
 	tmp_dir="$(mktemp -d)"
-	trap 'rm -rf "$tmp_dir"' EXIT INT TERM
+	trap 'if [ -n "${tmp_dir:-}" ] && [ -d "${tmp_dir:-}" ]; then rm -rf "${tmp_dir}"; fi' EXIT INT TERM
 
 	curl -fsSL "$asset_url" -o "$tmp_dir/$asset_name"
 	chmod +x "$tmp_dir/$asset_name"