diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 48233f5d..2909e84a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,6 +12,23 @@ permissions:
     contents: read
 
 jobs:
+    check-tests-are-watchable:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: actions/checkout@v3
+            - uses: actions/setup-node@v3
+              with:
+                  node-version: "lts/*"
+                  cache: npm
+            - name: Install dependencies
+              run: |
+                  npm ci
+              env:
+                  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: 1
+            - name: Tests that tests are watchable
+              run: |
+                  ./scripts/test-watch-mode-works.sh
+
     prettier:
         runs-on: ubuntu-latest
         steps: