diff --git a/texdoc.cnf b/texdoc.cnf
index af40925..7b38bbe 100644
--- a/texdoc.cnf
+++ b/texdoc.cnf
@@ -470,6 +470,7 @@ alias layouts = layman
 alias lettrine = lettrine          # to hide context/third/lettrine-doc.pdf
 alias llmk = light-latex-make/llmk
 alias(2) llmk = light-latex-make/README
+alias mathfont = mathfont_user_guide
 alias mls = montex
 alias musixtex = musixdoc
 alias newtxtext = newtxdoc