diff --git a/lib/efi_loader/efi_string.c b/lib/efi_loader/efi_string.c
index 9627242288..a3b8edf5a8 100644
--- a/lib/efi_loader/efi_string.c
+++ b/lib/efi_loader/efi_string.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <charset.h>
+#include <efi_loader.h>
 
 /**
  * efi_create_indexed_name - create a string name with an index