diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0e52c67bc..76dc68d8e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -139,6 +139,7 @@ jobs:
 
       - name: Build
         run: |
+          set -e  # Enable "exit on error" behavior
           mkdocs build 2>&1 | tee doc-build.log
 
       - name: Look for Warnings