diff --git a/arch/z16/src/z16f/z16f_irq.c b/arch/z16/src/z16f/z16f_irq.c
index 01e21229f84..5a214e6d6ce 100644
--- a/arch/z16/src/z16f/z16f_irq.c
+++ b/arch/z16/src/z16f/z16f_irq.c
@@ -43,7 +43,6 @@
 
 #include <nuttx/irq.h>
 #include <arch/irq.h>
-#include <ez8.h>
 
 #include "chip/chip.h"
 #include "os_internal.h"