diff --git a/.github/workflows/build-preview.yml b/.github/workflows/build-preview.yml
index f4bc1b3b8..3ebe1b16d 100644
--- a/.github/workflows/build-preview.yml
+++ b/.github/workflows/build-preview.yml
@@ -45,8 +45,8 @@ jobs:
           npm ci --include=dev
           rm -rf maplibre-gl-js
           git clone https://github.com/1ec5/maplibre-gl-js.git --branch=complex-text-50 --depth=10
-          git log -n 5
           cd maplibre-gl-js/
+          grep u200D build/generate-unicode-data.ts src/data/unicode_properties.ts
           npm install --include=dev
           npm run build-dist
           cd ../