diff --git a/doc/protocol/doc/ei-scanner.md b/doc/protocol/doc/ei-scanner.md
index 541c5fe..ef15057 100644
--- a/doc/protocol/doc/ei-scanner.md
+++ b/doc/protocol/doc/ei-scanner.md
@@ -55,6 +55,8 @@ ei-scanner additionally provides the following values to the Jinja2 templates:
       from the protocol XML type:
         uint32 -> "u"
         int32 -> "i"
+        uint64 -> "t"
+        int64 -> "x"
         float -> "f"
         fd -> "h"
         new_id -> "n"