diff --git a/src/main/java/io/github/johnjcool/keycloak/broker/cas/CasIdentityProvider.java b/src/main/java/io/github/johnjcool/keycloak/broker/cas/CasIdentityProvider.java
index 0c84439..125b497 100644
--- a/src/main/java/io/github/johnjcool/keycloak/broker/cas/CasIdentityProvider.java
+++ b/src/main/java/io/github/johnjcool/keycloak/broker/cas/CasIdentityProvider.java
@@ -68,7 +68,7 @@ public Response performLogin(final AuthenticationRequest request) {
       return Response.seeOther(authenticationUrl)
           .cookie(
               new NewCookie.Builder("__Host-cas_state")
-                  .value(request.getState().getDecodedState())
+                  .value(request.getState().getEncoded())
                   .httpOnly(true)
                   .secure(true)
                   .path("/")