diff --git a/include/semphr.h b/include/semphr.h
index 8977acadb..7b44d78c0 100644
--- a/include/semphr.h
+++ b/include/semphr.h
@@ -37,8 +37,8 @@
 
 typedef QueueHandle_t SemaphoreHandle_t;
 
-#define semBINARY_SEMAPHORE_QUEUE_LENGTH    ( ( uint8_t ) 1U )
-#define semSEMAPHORE_QUEUE_ITEM_LENGTH      ( ( uint8_t ) 0U )
+#define semBINARY_SEMAPHORE_QUEUE_LENGTH    ( ( UBaseType_t ) 1U )
+#define semSEMAPHORE_QUEUE_ITEM_LENGTH      ( ( UBaseType_t ) 0U )
 #define semGIVE_BLOCK_TIME                  ( ( TickType_t ) 0U )