diff --git a/modules/charon-core/src/main/java/org/wso2/charon3/core/encoder/JSONDecoder.java b/modules/charon-core/src/main/java/org/wso2/charon3/core/encoder/JSONDecoder.java
index 118dbbcbd..98f4269d4 100644
--- a/modules/charon-core/src/main/java/org/wso2/charon3/core/encoder/JSONDecoder.java
+++ b/modules/charon-core/src/main/java/org/wso2/charon3/core/encoder/JSONDecoder.java
@@ -53,6 +53,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
@@ -306,6 +307,14 @@ public <T extends AbstractSCIMObject> T decodeResource(String scimResourceString
                     //user may define the attribute by its fully qualified uri
                     attributeValObj = decodedJsonObj.opt(attributeSchema.getURI());
                 }
+                if (attributeValObj == null) {
+                    for (Iterator it = decodedJsonObj.keys(); it.hasNext(); ) {
+                        String key = (String) it.next();
+                        if (key.equalsIgnoreCase(attributeSchema.getName())) {
+                            attributeValObj = decodedJsonObj.get(key);
+                        }
+                    }
+                }
                 SCIMDefinitions.DataType attributeSchemaDataType = attributeSchema.getType();
 
                 if (attributeSchemaDataType.equals(STRING) || attributeSchemaDataType.equals(BINARY) ||
diff --git a/modules/charon-core/src/test/java/org/wso2/charon3/core/protocol/endpoints/MeResourceManagerTest.java b/modules/charon-core/src/test/java/org/wso2/charon3/core/protocol/endpoints/MeResourceManagerTest.java
index c11606783..1fb8f0c97 100644
--- a/modules/charon-core/src/test/java/org/wso2/charon3/core/protocol/endpoints/MeResourceManagerTest.java
+++ b/modules/charon-core/src/test/java/org/wso2/charon3/core/protocol/endpoints/MeResourceManagerTest.java
@@ -1247,7 +1247,7 @@ public void testGetUserName(Object objectUser, String scimObjectString)
     public Object[][] dataToTestGetUsernameErrorInGettingTheUsernameFromTheAnonymousRequest() {
 
         String scimObjectString = "{\n" +
-                "UserName: John,\n" +
+                "InvalidUserName: John,\n" +
                 "}";
         return new Object[][]{
                 {scimObjectString}