diff --git a/doc/src/Build_manual.txt b/doc/src/Build_manual.txt
index 3dfc3d08b305e66ee81d635b245f0d42a18fdefb..695ac21a13fb9c77f9bfd4d70edeadb8e3648fb0 100644
--- a/doc/src/Build_manual.txt
+++ b/doc/src/Build_manual.txt
@@ -13,12 +13,12 @@ Building the LAMMPS Manual :h2
 Depending on how you obtained LAMMPS, the doc directory has 
 2 or 3 sub-directories and optionally 2 PDF files and an ePUB file:
 
-src             content files for LAMMPS documentation
-html            HTML version of the LAMMPS manual (see html/Manual.html)
-tools           tools and settings for building the documentation
-Manual.pdf      large PDF version of entire manual
-Developer.pdf   small PDF with info about how LAMMPS is structured
-LAMMPS.epub     Manual in ePUB format :pre
+src             # content files for LAMMPS documentation
+html            # HTML version of the LAMMPS manual (see html/Manual.html)
+tools           # tools and settings for building the documentation
+Manual.pdf      # large PDF version of entire manual
+Developer.pdf   # small PDF with info about how LAMMPS is structured
+LAMMPS.epub     # Manual in ePUB format :pre
 
 If you downloaded LAMMPS as a tarball from the web site, all these
 directories and files should be included.