diff --git a/PyTeX/format/simple_tex_formatter.py b/PyTeX/format/simple_tex_formatter.py
index c9a1d95..6cdfee9 100644
--- a/PyTeX/format/simple_tex_formatter.py
+++ b/PyTeX/format/simple_tex_formatter.py
@@ -34,4 +34,6 @@ class SimpleTeXFormatter(TexFormatter):
             return line.rstrip()
 
     def format_post_header(self) -> None:
-        self._shipout_line(self._get_provides_text())
+        self._shipout_line(self._get_provides_text(
+            self.config.tex_type.value.capitalize(),
+        ))