diff --git a/c/src/exec/rtems/src/semdelete.c b/c/src/exec/rtems/src/semdelete.c
index 301a93828a..079d9ed810 100644
--- a/c/src/exec/rtems/src/semdelete.c
+++ b/c/src/exec/rtems/src/semdelete.c
@@ -62,7 +62,7 @@
  */
 
 #if defined(RTEMS_MULTIPROCESSING)
-#define SEMAPHORE_MP_WAS_DELETED       _Semaphore_MP_Send_object_was_deleted
+#define SEMAPHORE_MP_OBJECT_WAS_DELETED _Semaphore_MP_Send_object_was_deleted
 #else
 #define SEMAPHORE_MP_OBJECT_WAS_DELETED NULL
 #endif