diff --git a/doc/doxygen.conf.in b/doc/doxygen.conf.in
index 5e489fa0..9ff111bd 100644
--- a/doc/doxygen.conf.in
+++ b/doc/doxygen.conf.in
@@ -489,7 +489,8 @@ INPUT_ENCODING         = UTF-8
 # *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.py
 
 FILE_PATTERNS          = libisoburn.h \
-                         xorriso.h
+                         xorriso.h \
+                         comments
 
 # The RECURSIVE tag can be used to turn specify whether or not subdirectories 
 # should be searched for input files as well. Possible values are YES and NO.