diff --git a/lib/cpus/aarch64/cortex_a55.S b/lib/cpus/aarch64/cortex_a55.S
index f103159..741c773 100644
--- a/lib/cpus/aarch64/cortex_a55.S
+++ b/lib/cpus/aarch64/cortex_a55.S
@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <cortex_a55.h>
 #include <arch.h>
 #include <asm_macros.S>
 #include <bl_common.h>
+#include <cortex_a55.h>
 #include <cpu_macros.S>
 #include <plat_macros.S>
 
diff --git a/lib/psci/psci_on.c b/lib/psci/psci_on.c
index d5c9843..16b22c2 100644
--- a/lib/psci/psci_on.c
+++ b/lib/psci/psci_on.c
@@ -8,8 +8,8 @@
 #include <arch_helpers.h>
 #include <assert.h>
 #include <bl_common.h>
-#include <debug.h>
 #include <context_mgmt.h>
+#include <debug.h>
 #include <platform.h>
 #include <stddef.h>
 #include "psci_private.h"
diff --git a/lib/psci/psci_suspend.c b/lib/psci/psci_suspend.c
index 4798892..0d1589e 100644
--- a/lib/psci/psci_suspend.c
+++ b/lib/psci/psci_suspend.c
@@ -4,10 +4,10 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <assert.h>
-#include <bl_common.h>
 #include <arch.h>
 #include <arch_helpers.h>
+#include <assert.h>
+#include <bl_common.h>
 #include <context.h>
 #include <context_mgmt.h>
 #include <cpu_data.h>
diff --git a/lib/psci/psci_system_off.c b/lib/psci/psci_system_off.c
index 4a55248..ef5d3d1 100644
--- a/lib/psci/psci_system_off.c
+++ b/lib/psci/psci_system_off.c
@@ -4,12 +4,12 @@
  * SPDX-License-Identifier: BSD-3-Clause
  */
 
-#include <stddef.h>
 #include <arch_helpers.h>
 #include <assert.h>
 #include <console.h>
 #include <debug.h>
 #include <platform.h>
+#include <stddef.h>
 #include "psci_private.h"
 
 void __dead2 psci_system_off(void)