diff --git a/backend/src/main.rs b/backend/src/main.rs
index 68089bf..366e278 100644
--- a/backend/src/main.rs
+++ b/backend/src/main.rs
@@ -334,7 +334,9 @@ async fn run() -> Result<(), StartupError> {
 
                 // WASM plugins need per-community context.
                 let community_ids: Vec<Uuid> =
-                    match sqlx::query_scalar("SELECT id FROM communities WHERE is_active = true")
+                    match sqlx::query_scalar(
+                        "SELECT id FROM communities WHERE is_active = true AND settings->>'plugin_allow_background_jobs' = 'true'",
+                    )
                         .fetch_all(&cron_pool)
                         .await
                     {