diff --git a/tools/test-helper/README.md b/tools/test-helper/README.md
index c9226a23f..0c410d94e 100644
--- a/tools/test-helper/README.md
+++ b/tools/test-helper/README.md
@@ -14,6 +14,8 @@ For the test helper to work correctly, you also need to install `oxipng`, for
 example with `cargo install oxipng`.
 
 ## Installation
-The simplest way to install this extension (and keep it up-to-date) is to add a
-symlink from `~/.vscode/extensions/typst-test-helper` to
-`path/to/typst/tools/test-helper`.
+The simplest way to install this extension (and keep it up-to-date) is to use VSCode's UI:
+* Go to View > Command Palette,
+* In the drop down list, pick command "Developer: Install extension from location",
+* Select this `test-helper` directory in the file explorer dialogue box. VSCode will add
+the extension's path to `~/.vscode/extensions/extensions.json`.