diff --git a/plat/xilinx/zynqmp/plat_topology.c b/plat/xilinx/zynqmp/plat_topology.c
index aab24aa..41add9f 100644
--- a/plat/xilinx/zynqmp/plat_topology.c
+++ b/plat/xilinx/zynqmp/plat_topology.c
@@ -3,10 +3,11 @@
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
+#include <stdint.h>
 
-static const unsigned char plat_power_domain_tree_desc[] = {1, 4};
+static const uint8_t plat_power_domain_tree_desc[] = {1, 4};
 
-const unsigned char *plat_get_power_domain_tree_desc(void)
+const uint8_t *plat_get_power_domain_tree_desc(void)
 {
 	return plat_power_domain_tree_desc;
 }