diff --git a/include/sta/rtos/event.hpp b/include/sta/rtos/event.hpp
index b1288a1..e5e6580 100644
--- a/include/sta/rtos/event.hpp
+++ b/include/sta/rtos/event.hpp
@@ -47,8 +47,6 @@ namespace sta
 		 * @return Event flags before clearing or error code if highest bit set.
 		 */
 		uint32_t wait(uint32_t flags, uint32_t timeout = osWaitForever) override;
-
-		uint32_t waitAll(uint32_t flags, uint32_t timeout = osWaitForever) override;
 	private:
 		osEventFlagsId_t event_id;   /**< CMSIS RTOS2 Event Flag */
 	};
diff --git a/src/event.cpp b/src/event.cpp
index bcaff5f..3ae5293 100644
--- a/src/event.cpp
+++ b/src/event.cpp
@@ -26,9 +26,4 @@ namespace sta {
         return osEventFlagsWait(event_id, flags, osFlagsWaitAny, timeout);
     }
 
-    uint32_t RtosEvent::waitAll(uint32_t flags, uint32_t timeout /* = osWaitForever */)
-    {
-    	return osEventFlagsWait(event_id, flags, osFlagsWaitAll, timeout);
-    }
-
 } // namespace sta