diff --git a/src/main/java/com/eactive/eai/common/util/MessageUtil.java b/src/main/java/com/eactive/eai/common/util/MessageUtil.java
index 4304ff1..6ff58b1 100644
--- a/src/main/java/com/eactive/eai/common/util/MessageUtil.java
+++ b/src/main/java/com/eactive/eai/common/util/MessageUtil.java
@@ -34,7 +34,7 @@ import com.solab.iso8583.IsoMessage;
 public final class MessageUtil {
 	static Logger logger = LoggerFactory.getLogger(MessageUtil.class);
 	
-	public static final String ERROR_MESSAGE_DEFAULT_FORMAT = "{\"error\":{\"code\":\"%s\",\"message\":\"%s\"}}";
+	public static final String ERROR_MESSAGE_DEFAULT_FORMAT = "{\"error\":\"%s\",\"error_description\":\"%s\"}";
 	
 	public static final String ERROR_CODE_AP_ERROR = "E.GW.AP_ERROR";
 	public static final String ERROR_CODE_AUTH_FAIL = "E.GW.AUTH_FAIL";