diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index d02beedae..46e11116d 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -19,6 +19,7 @@ branchProtectionRules:
       - OwlBot Post Processor
       - 'Kokoro - Test: Java GraalVM Native Image'
       - 'Kokoro - Test: Java 17 GraalVM Native Image'
+      - javadoc
   - pattern: 1.111.0-sp
     isAdminEnforced: true
     requiredApprovingReviewCount: 1