diff --git a/PyTeX/format/dtx_formatter.py b/PyTeX/format/dtx_formatter.py
index 4d2bc25..1391c60 100644
--- a/PyTeX/format/dtx_formatter.py
+++ b/PyTeX/format/dtx_formatter.py
@@ -57,11 +57,14 @@ class DTXFormatter(TexFormatter):
         self._shipout_line(
             self._get_internal_file()
         )
+        self._shipout_line('%<*internal>')
         self._shipout_line('%')
         self._shipout_line(
             '%<{outtype}>{provides}'.format(
                 outtype=self.config.tex_out_type.value,
-                provides=self._get_provides_text()
+                provides=self._get_provides_text(
+                    self.config.tex_out_type.value.capitalize()
+                )
             )
         )
         self._shipout_line('%')