diff --git a/lib/system/zephyr/sys.h b/lib/system/zephyr/sys.h
index 712fdfef..fbb46d7b 100644
--- a/lib/system/zephyr/sys.h
+++ b/lib/system/zephyr/sys.h
@@ -16,7 +16,6 @@
 #ifndef __METAL_ZEPHYR_SYS__H__
 #define __METAL_ZEPHYR_SYS__H__
 
-#include <metal/cpu.h>
 #include <stdlib.h>
 #include <zephyr/kernel.h>
 
@@ -24,7 +23,7 @@
 extern "C" {
 #endif
 
-#define metal_yield() metal_cpu_yield()
+#define metal_yield() k_yield()
 
 #define METAL_INIT_DEFAULTS				\
 {							\