diff --git a/include/kernel.h b/include/kernel.h
index 3a254313241..a4dca2bce3f 100644
--- a/include/kernel.h
+++ b/include/kernel.h
@@ -494,6 +494,7 @@ __syscall void k_wakeup(k_tid_t thread);
  *
  * @return ID of current thread.
  */
+__attribute_const__
 __syscall k_tid_t z_current_get(void);
 
 #ifdef CONFIG_THREAD_LOCAL_STORAGE