diff --git a/hw/bsp/lpc18/FreeRTOSConfig/FreeRTOSConfig.h b/hw/bsp/lpc18/FreeRTOSConfig/FreeRTOSConfig.h
index ea568dfc9..6f80413c0 100644
--- a/hw/bsp/lpc18/FreeRTOSConfig/FreeRTOSConfig.h
+++ b/hw/bsp/lpc18/FreeRTOSConfig/FreeRTOSConfig.h
@@ -66,7 +66,7 @@
 #define configUSE_MUTEXES                       1
 #define configUSE_RECURSIVE_MUTEXES             1
 #define configUSE_COUNTING_SEMAPHORES           1
-#define configQUEUE_REGISTRY_SIZE               3
+#define configQUEUE_REGISTRY_SIZE               4
 #define configUSE_QUEUE_SETS                    0
 #define configUSE_TIME_SLICING                  0
 #define configUSE_NEWLIB_REENTRANT              0