1 files changed, 4 insertions, 4 deletions
diff --git a/cpukit/score/src/schedulercbsunblock.c b/cpukit/score/src/schedulercbsunblock.c
index 688253c279..56b35de8b9 100644
--- a/cpukit/score/src/schedulercbsunblock.c
+++ b/cpukit/score/src/schedulercbsunblock.c
@@ -79,10 +79,10 @@ Scheduler_Void_or_thread _Scheduler_CBS_Unblock(
        _Thread_Heir->current_priority
     )
   ) {
-    _Thread_Heir = the_thread;
-    if ( _Thread_Executing->is_preemptible ||
-         the_thread->current_priority == 0 )
-      _Thread_Dispatch_necessary = true;
+    _Scheduler_Update_heir(
+      the_thread,
+      the_thread->current_priority == PRIORITY_PSEUDO_ISR
+    );
   }
 
   SCHEDULER_RETURN_VOID_OR_NULL;