diff --git a/_sidebar.md b/_sidebar.md
index 1dff9b6..b6459b2 100644
--- a/_sidebar.md
+++ b/_sidebar.md
@@ -8,7 +8,7 @@
 - [Ruby](categories/ruby.md)
 - [Interview](categories/interviews/interview.md)
 - [Software Design](categories/software-design.md)
-- [Message Queue](categories/message-queue.md)
+- [Message Queue](categories/queues.md)
     - [Kafka](categories/queues/kafka.md)
 - [Database](categories/database.md)
 - [Application](categories/application.md)
diff --git a/categories/message-queue.md b/categories/queues.md
similarity index 96%
rename from categories/message-queue.md
rename to categories/queues.md
index e721602..448b571 100644
--- a/categories/message-queue.md
+++ b/categories/queues.md
@@ -1,10 +1,11 @@
 # Message Queue
+
 ## Rabbitmq
 
 ## activeMQ
 
 ## Redis
 
-# MQTT
+## MQTT
 
 A lightweight messaging protocol for small sensors and mobile devices, optimized for high-latency or unreliable networks. It's basically a machine-to-machine `protocol`