diff --git a/include/sta/rtos/defs.hpp b/include/sta/rtos/defs.hpp
index 6b5fdfb..2638260 100644
--- a/include/sta/rtos/defs.hpp
+++ b/include/sta/rtos/defs.hpp
@@ -29,7 +29,7 @@
  */
 
 /**
- * @defgroup STA_RTOS_Sync Process synchronization
+ * @defgroup STA_RTOS_SYNC Process synchronization
  * @ingroup STA_RTOS_API
  * @brief Classes for process synchronization.
  */
diff --git a/include/sta/rtos/event.hpp b/include/sta/rtos/event.hpp
index 99d9624..b058e0c 100644
--- a/include/sta/rtos/event.hpp
+++ b/include/sta/rtos/event.hpp
@@ -14,7 +14,7 @@ namespace sta
 	/**
 	 * @brief Implementation of Event using CMSIS RTOS2.
 	 *
-	 * @ingroup STA_RTOS_Sync
+	 * @ingroup STA_RTOS_SYNC
 	 */
 	class RtosEvent : public Event
 	{
diff --git a/include/sta/rtos/mutex.hpp b/include/sta/rtos/mutex.hpp
index 9f420a6..c946185 100644
--- a/include/sta/rtos/mutex.hpp
+++ b/include/sta/rtos/mutex.hpp
@@ -13,7 +13,7 @@ namespace sta
 {
 	/**
 	 * @brief Implementation of Mutex interface using CMSIS RTOS2.
-	 * @ingroup STA_RTOS_Sync
+	 * @ingroup STA_RTOS_SYNC
 	 */
 	class RtosMutex : public Mutex
 	{
diff --git a/include/sta/rtos/signal.hpp b/include/sta/rtos/signal.hpp
index 6ede2cb..b7b0ee9 100644
--- a/include/sta/rtos/signal.hpp
+++ b/include/sta/rtos/signal.hpp
@@ -14,7 +14,7 @@ namespace sta
 	/**
 	 * @brief Implementation of Signal interface using CMSIS RTOS2.
 	 *
-	 * @ingroup STA_RTOS_Sync
+	 * @ingroup STA_RTOS_SYNC
 	 * 
 	 */
 	class RtosSignal : public Signal