diff --git a/bsp/zynqmp-r5-axu4ev/drivers/Zynq_HAL_Driver/xil_cache.h b/bsp/zynqmp-r5-axu4ev/drivers/Zynq_HAL_Driver/xil_cache.h
index 1731e84850..2590ce096b 100644
--- a/bsp/zynqmp-r5-axu4ev/drivers/Zynq_HAL_Driver/xil_cache.h
+++ b/bsp/zynqmp-r5-axu4ev/drivers/Zynq_HAL_Driver/xil_cache.h
@@ -1,6 +1,8 @@
 #ifndef XIL_CACHE_H
 #define XIL_CACHE_H
 
+#include <rthw.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif