diff --git a/src/system/kernel/sem.cpp b/src/system/kernel/sem.cpp
index 1416c02c22..c6fd0f2844 100644
--- a/src/system/kernel/sem.cpp
+++ b/src/system/kernel/sem.cpp
@@ -919,7 +919,8 @@ release_sem_etc(sem_id id, int32 count, uint32 flags)
 		flags |= B_RELEASE_IF_WAITING_ONLY;
 	}
 
-	bool unblockedAny = false;
+	struct thread* currentThread = thread_get_current_thread();
+	bool reschedule = false;
 
 	SpinLocker threadLocker(gThreadSpinlock);
 
@@ -948,7 +949,7 @@ release_sem_etc(sem_id id, int32 count, uint32 flags)
 			sSems[slot].u.used.count += delta;
 			sSems[slot].u.used.net_count += delta - entry->count;
 			count -= delta;
-			unblockedAny = true;
+			reschedule |= entry->thread->priority > currentThread->priority;
 		} else {
 			// The thread is no longer waiting, but still queued, which
 			// means acquiration failed and we can just remove it.
@@ -966,7 +967,7 @@ release_sem_etc(sem_id id, int32 count, uint32 flags)
 
 	// If we've unblocked another thread reschedule, if we've not explicitly
 	// been told not to.
-	if (unblockedAny && (flags & B_DO_NOT_RESCHEDULE) == 0) {
+	if (reschedule && (flags & B_DO_NOT_RESCHEDULE) == 0) {
 		semLocker.Unlock();
 		threadLocker.Lock();
 		scheduler_reschedule();