diff --git a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/CasAuthorizeEndpoint.java b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/CasAuthorizeEndpoint.java
index 07b9e87b..fb12d7e7 100644
--- a/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/CasAuthorizeEndpoint.java
+++ b/maxkey-protocols/maxkey-protocol-cas/src/main/java/org/maxkey/authz/cas/endpoint/CasAuthorizeEndpoint.java
@@ -178,7 +178,7 @@ public class CasAuthorizeEndpoint  extends CasBaseAuthorizeEndpoint{
 			HttpServletRequest request,
 			HttpServletResponse response,
 			@RequestParam(value=CasConstants.PARAMETER.SERVICE,required=false) String casService){
-		StringBuffer logoutUrl = new StringBuffer("force/logout");
+		StringBuffer logoutUrl = new StringBuffer("/force/logout");
 		if(StringUtils.isNotBlank(casService)){
 			logoutUrl.append("?").append("redirect_uri=").append(casService);
 		}
diff --git a/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java b/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
index 1a3d81c7..e38ffd56 100644
--- a/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
+++ b/maxkey-protocols/maxkey-protocol-saml-2.0/src/main/java/org/maxkey/authz/saml20/provider/endpoint/LogoutSamlEndpoint.java
@@ -62,7 +62,7 @@ public class LogoutSamlEndpoint {
                 HttpServletResponse response)throws Exception {
              SAMLMessageContext messageContext;
              logger.debug("extract SAML Message .");
-             StringBuffer logoutUrl = new StringBuffer("force/logout");
+             StringBuffer logoutUrl = new StringBuffer("/force/logout");
              try {
                  messageContext = extractRedirectBindingAdapter.extractSAMLMessageContext(request);
                  logger.debug("validate SAML LogoutRequest .");