diff --git a/db/docs/p_ci_job_messages.yml b/db/docs/p_ci_job_messages.yml
index b76e599a69fbb78993aae890b906beba52657c34..1cd8fa01077311fa8d86856b53e78981aae1df24 100644
--- a/db/docs/p_ci_job_messages.yml
+++ b/db/docs/p_ci_job_messages.yml
@@ -10,3 +10,4 @@ milestone: '18.4'
 gitlab_schema: gitlab_ci
 sharding_key:
   project_id: projects
+table_size: small