diff --git a/docs/svelte-testing-library/setup.md b/docs/svelte-testing-library/setup.md
index 02bf0e418..65a248495 100644
--- a/docs/svelte-testing-library/setup.md
+++ b/docs/svelte-testing-library/setup.md
@@ -72,6 +72,23 @@ with any testing framework and runner you're comfortable with.
     npm run test
     ```
 
+## Typescript
+
+In order to support Typescript, you need to enable `preprocess`.
+
+1. Update your jest configuration
+
+  ```json
+  {
+    "jest": {
+      "transform": {
+        "^.+\\.svelte$": ["svelte-jester", { "preprocess": true }]
+      },
+      "moduleFileExtensions": ["js", "ts", "svelte"]
+    }
+  }
+  ```
+
 ## Babel / Preprocessors
 
 If you'd like to also include [Babel](https://babeljs.io/) or any