diff --git a/Doxyfile b/Doxyfile
index 4c1d2591..096c2a27 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -672,7 +672,7 @@ INPUT_ENCODING         = UTF-8
 # *.hxx *.hpp *.h++ *.idl *.odl *.cs *.php *.php3 *.inc *.m *.mm *.dox *.py
 # *.f90 *.f *.for *.vhd *.vhdl
 
-FILE_PATTERNS          = *.c
+FILE_PATTERNS          = *.c *.h
 
 # 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.
@@ -1159,7 +1159,7 @@ DISABLE_INDEX          = NO
 # Since the tree basically has the same information as the tab index you
 # could consider to set DISABLE_INDEX to NO when enabling this option.
 
-GENERATE_TREEVIEW      = NO
+GENERATE_TREEVIEW      = YES
 
 # The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values
 # (range [0,1..20]) that doxygen will group on one line in the generated HTML