diff --git a/doc/formats/html/Doxyfile b/doc/formats/html/Doxyfile
index 66ad911eb..730158773 100644
--- a/doc/formats/html/Doxyfile
+++ b/doc/formats/html/Doxyfile
@@ -435,7 +435,7 @@ LOOKUP_CACHE_SIZE      = 0
 # normally produced when WARNINGS is set to YES.
 # The default value is: NO.
 
-EXTRACT_ALL            = NO
+EXTRACT_ALL            = YES
 
 # If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
 # be included in the documentation.
@@ -790,7 +790,7 @@ WARN_LOGFILE           = doxygen_warnings
 # spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = ../ ./mainpage.dox
+INPUT                  = ./mainpage.dox ./dox_comments/header_files/
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses