diff --git a/efi-port/core/src/efi.h b/efi-port/core/src/efi.h
index ad61ddc..d4ad368 100644
--- a/efi-port/core/src/efi.h
+++ b/efi-port/core/src/efi.h
@@ -3,6 +3,7 @@
 
 #include <stdint.h>
 
+// Taken from: https://github.com/AndreVallestero/minimal-efi/blob/master/main.c
 typedef struct EfiTableHeader {
     uint64_t  signature;
     uint32_t  revision;