diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index aa2533b49e..16d3d6a426 100644
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -2464,7 +2464,7 @@ static EFI_STATUS initrd_prepare(
                 if (err != EFI_SUCCESS)
                         return err;
 
-                if (!ADD_SAFE(&size, size, ALIGN4(info->FileSize)))
+                if (!INC_SAFE(&size, ALIGN4(info->FileSize)))
                         return EFI_OUT_OF_RESOURCES;
         }