diff --git a/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.c b/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.c
index ef7f5a8..af8760d 100644
--- a/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.c
+++ b/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: MIT
 
 #include <exec/exec.h>
 
diff --git a/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.h b/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.h
index 1eabbc0..676cd8b 100644
--- a/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.h
+++ b/platforms/amiga/ahi/ahi_driver_amiga/pi-ahi.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 struct pi_ahi {
 	struct Task *t_master;
 	struct Library *ahi_base;
diff --git a/platforms/amiga/ahi/pi-ahi-enums.h b/platforms/amiga/ahi/pi-ahi-enums.h
index cad65a1..8905d87 100644
--- a/platforms/amiga/ahi/pi-ahi-enums.h
+++ b/platforms/amiga/ahi/pi-ahi-enums.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 #define PI_AHI_OFFSET   0x88000000
 #define PI_AHI_REGSIZE  0x00010000
 #define PI_AHI_UPPER    0x8A000000
diff --git a/platforms/amiga/ahi/pi_ahi.h b/platforms/amiga/ahi/pi_ahi.h
index 7868e22..32d15cf 100644
--- a/platforms/amiga/ahi/pi_ahi.h
+++ b/platforms/amiga/ahi/pi_ahi.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: MIT
+
 #define AHIST_M8S		0
 #define AHIST_M16S		1
 #define AHIST_S8S		2