diff --git a/CMSIS/RTOS2/RTX/Source/rtx_thread.c b/CMSIS/RTOS2/RTX/Source/rtx_thread.c
index 96a1e3196f..e69bf44f1d 100644
--- a/CMSIS/RTOS2/RTX/Source/rtx_thread.c
+++ b/CMSIS/RTOS2/RTX/Source/rtx_thread.c
@@ -400,7 +400,7 @@ static void osRtxThreadBlock (os_thread_t *thread) {
   prev = osRtxThreadObject(&osRtxInfo.thread.ready);
   next = prev->thread_next;
 
-  while ((next != NULL) && (next->priority > priority)) {
+  while ((next != NULL) && (next->priority >= priority)) {
     prev = next;
     next = next->thread_next;
   }