diff --git a/hutool-core/src/main/java/cn/hutool/core/map/MapProxy.java b/hutool-core/src/main/java/cn/hutool/core/map/MapProxy.java
index 6fe603ec6..0a59c1a79 100644
--- a/hutool-core/src/main/java/cn/hutool/core/map/MapProxy.java
+++ b/hutool-core/src/main/java/cn/hutool/core/map/MapProxy.java
@@ -155,6 +155,7 @@ public class MapProxy implements Map<Object, Object>, OptNullBasicTypeFromObject
 				final String fieldName = StrUtil.removePreAndLowerFirst(methodName, 3);
 				if (StrUtil.isNotBlank(fieldName)) {
 					this.put(fieldName, args[0]);
+					return proxy;
 				}
 			} else if ("equals".equals(methodName)) {
 				return this.equals(args[0]);