diff --git a/grub-core/loader/arm64/linux.c b/grub-core/loader/arm64/linux.c
index 185ca6332..57b9ff816 100644
--- a/grub-core/loader/arm64/linux.c
+++ b/grub-core/loader/arm64/linux.c
@@ -73,7 +73,7 @@ finalize_params_linux (void)
 
   void *fdt;
 
-  fdt = grub_fdt_load (0x400);
+  fdt = grub_fdt_load (GRUB_EFI_LINUX_FDT_EXTRA_SPACE);
 
   if (!fdt)
     goto failure;
diff --git a/include/grub/fdt.h b/include/grub/fdt.h
index 158b1bc4b..e609c7e41 100644
--- a/include/grub/fdt.h
+++ b/include/grub/fdt.h
@@ -22,6 +22,9 @@
 #include <grub/types.h>
 #include <grub/symbol.h>
 
+/* Space required when preparing the /chosen node after boot has been called. */
+#define GRUB_EFI_LINUX_FDT_EXTRA_SPACE 0x400
+
 #define FDT_MAGIC 0xD00DFEED
 
 typedef struct {