diff --git a/headers/private/kernel/sem.h b/headers/private/kernel/sem.h
index ce81be4636..77c883dba9 100755
--- a/headers/private/kernel/sem.h
+++ b/headers/private/kernel/sem.h
@@ -15,7 +15,6 @@ struct kernel_args;
 /* user calls */
 sem_id _user_create_sem(int32 count, const char *name);
 status_t _user_delete_sem(sem_id id);
-status_t _user_delete_sem_etc(sem_id id, status_t return_code, bool interrupted);
 status_t _user_acquire_sem(sem_id id);
 status_t _user_acquire_sem_etc(sem_id id, int32 count, uint32 flags, bigtime_t timeout);
 status_t _user_release_sem(sem_id id);