diff --git a/jOOQ/src/main/java/org/jooq/LoaderRowListener.java b/jOOQ/src/main/java/org/jooq/LoaderRowListener.java
index 090ebdbcf7..9b50a7a203 100644
--- a/jOOQ/src/main/java/org/jooq/LoaderRowListener.java
+++ b/jOOQ/src/main/java/org/jooq/LoaderRowListener.java
@@ -43,6 +43,7 @@ package org.jooq;
  *
  * @author Lukas Eder
  */
+@FunctionalInterface
 public interface LoaderRowListener {
 
     /**