diff --git a/core/src/main/java/org/apache/struts2/util/ContainUtil.java b/core/src/main/java/org/apache/struts2/util/ContainUtil.java
index f3cd3241a..af19603ae 100644
--- a/core/src/main/java/org/apache/struts2/util/ContainUtil.java
+++ b/core/src/main/java/org/apache/struts2/util/ContainUtil.java
@@ -77,7 +77,7 @@ public class ContainUtil {
             }
         } if (obj1 instanceof Iterable) {
             for (Object value : ((Iterable) obj1)) {
-                if (obj2.equals(value) || obj2.toString().equals(value)) {
+                if (obj2.equals(value) || obj2.toString().equals(value.toString())) {
                     return true;
                 }
             }
@@ -85,7 +85,7 @@ public class ContainUtil {
             for (int i = 0; i < Array.getLength(obj1); i++) {
                 Object value = Array.get(obj1, i);
 
-                if (obj2.equals(value)) {
+                if (obj2.equals(value) || obj2.toString().equals(value.toString())) {
                     return true;
                 }
             }