diff --git a/src/api/app/controllers/webui/user_controller.rb b/src/api/app/controllers/webui/user_controller.rb
index 01bdf507620..51f9cf842dc 100644
--- a/src/api/app/controllers/webui/user_controller.rb
+++ b/src/api/app/controllers/webui/user_controller.rb
@@ -14,6 +14,7 @@ def index
 
   def logout
     logger.info "Logging out: #{session[:login]}"
+    Rails.cache.delete("ldap_cache_userpasswd:#{session[:login]}")
     reset_session
     User.current = nil
     if CONFIG['proxy_auth_mode'] == :on