diff --git a/src/include/ipxe/efi/efi_file.h b/src/include/ipxe/efi/efi_file.h
index e4db0305a..79c073cf1 100644
--- a/src/include/ipxe/efi/efi_file.h
+++ b/src/include/ipxe/efi/efi_file.h
@@ -7,6 +7,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
 extern int efi_file_install ( EFI_HANDLE handle );
 extern void efi_file_uninstall ( EFI_HANDLE handle );
 
diff --git a/src/include/ipxe/efi/efi_snp.h b/src/include/ipxe/efi/efi_snp.h
index a9f67cfcb..9076f1d56 100644
--- a/src/include/ipxe/efi/efi_snp.h
+++ b/src/include/ipxe/efi/efi_snp.h
@@ -7,6 +7,8 @@
  *
  */
 
+FILE_LICENCE ( GPL2_OR_LATER );
+
 #include <ipxe/list.h>
 #include <ipxe/netdevice.h>
 #include <ipxe/efi/efi.h>