diff --git a/.github/workflows/build-documents.yml b/.github/workflows/build-documents.yml
index 8f26b4bd3..6bf308754 100644
--- a/.github/workflows/build-documents.yml
+++ b/.github/workflows/build-documents.yml
@@ -2,6 +2,7 @@ name: Build Documents
 
 on:
   workflow_dispatch:
+  pull_request:
   push:
     branches:
       - master