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 41e40ec1b..1cde88b0a 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
@@ -184,7 +184,7 @@ public class CasAuthorizeEndpoint  extends CasBaseAuthorizeEndpoint{
 	@RequestMapping(CasConstants.ENDPOINT.ENDPOINT_LOGOUT)
 	public ModelAndView logout(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);
 		}