diff --git a/spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/JdbcAggregateTemplate.java b/spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/JdbcAggregateTemplate.java
index 59a76b03..aac514f0 100644
--- a/spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/JdbcAggregateTemplate.java
+++ b/spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/JdbcAggregateTemplate.java
@@ -610,7 +610,7 @@ public class JdbcAggregateTemplate implements JdbcAggregateOperations {
 		return aggregateChange;
 	}
 
-	private <T> Iterable<T> triggerAfterConvert(Iterable<T> all) {
+	private <T> List<T> triggerAfterConvert(Iterable<T> all) {
 
 		List<T> result = new ArrayList<>();