diff --git a/helpers.lua b/helpers.lua
index 4ca3b1a..91a31c8 100644
--- a/helpers.lua
+++ b/helpers.lua
@@ -214,7 +214,7 @@ function delete_redirect_cookie()
                        "; Expires="..expired_time..
                        "; Secure"..
                        "; HttpOnly"..
-                       "; SameSite=Lax ;;"
+                       "; SameSite=Lax"
     ngx.header["Set-Cookie"] = "SSOwAuthRedirect=;" ..cookie_str
 end