diff --git a/backend/src/routes.ts b/backend/src/routes.ts
index 0677663b3..399c3b8ab 100644
--- a/backend/src/routes.ts
+++ b/backend/src/routes.ts
@@ -111,6 +111,7 @@ class Routes {
         ancestors: tx.ancestors,
         bestDescendant: tx.bestDescendant || null,
       });
+      return;
     }
 
     const cpfpInfo = Common.setRelativesAndGetCpfpInfo(tx, mempool.getMempool());