diff --git a/src/main/java/cn/lihongjie/coal/pojoProcessor/PojoProcessor.java b/src/main/java/cn/lihongjie/coal/pojoProcessor/PojoProcessor.java
index 74c65b52..b66e0ddd 100644
--- a/src/main/java/cn/lihongjie/coal/pojoProcessor/PojoProcessor.java
+++ b/src/main/java/cn/lihongjie/coal/pojoProcessor/PojoProcessor.java
@@ -11,6 +11,7 @@ import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 
 import org.apache.commons.collections4.MapUtils;
+import org.apache.commons.lang3.ObjectUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.reflect.FieldUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -124,7 +125,7 @@ public class PojoProcessor {
                 return;
             }
 
-            if (!seen.add(pojo)) {
+            if (!seen.add(ObjectUtils.identityToString(pojo))) {
                 return;
             }