diff --git a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ProxyServiceResponseBuilder.java b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ProxyServiceResponseBuilder.java
index 288ad13f..9d5ed705 100644
--- a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ProxyServiceResponseBuilder.java
+++ b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ProxyServiceResponseBuilder.java
@@ -27,11 +27,14 @@ public class ProxyServiceResponseBuilder extends  ServiceResponseBuilder{
 
 	@Override
 	public String  serviceResponseBuilder() {
+		String responseString = "";
 		if(format.equalsIgnoreCase(CasConstants.FORMAT_TYPE.XML)){
-			return serviceResponseXmlBuilder();
+			responseString = serviceResponseXmlBuilder();
 		}else{
-			return serviceResponseJsonBuilder();
+			responseString =serviceResponseJsonBuilder();
 		}
+		_logger.trace("Response String : "+responseString);
+		return responseString;
 	}
 	
 	@Override
diff --git a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ServiceResponseBuilder.java b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ServiceResponseBuilder.java
index ec1df41a..395f0b6a 100644
--- a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ServiceResponseBuilder.java
+++ b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/response/ServiceResponseBuilder.java
@@ -36,7 +36,7 @@ public class ServiceResponseBuilder extends CasServiceResponse {
 			responseString= serviceResponseJsonBuilder();
 		}
 		
-		_logger.debug("Response String : "+responseString);
+		_logger.trace("Response String : "+responseString);
 		return responseString;
 	}