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--- a/Doxyfile
+++ b/Doxyfile
@@ -534,7 +534,7 @@
 # directories like "/usr/src/myproject". Separate the files or directories 
 # with spaces.
 
-INPUT                  = Intro.dox pxattr.h
+INPUT                  = Intro.dox pxattr.h pxattr.cpp
 
 # This tag can be used to specify the character encoding of the source files 
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding, which is