diff --git a/Doxyfile.sample b/Doxyfile.sample
index ffc6006..ef892a1 100644
--- a/Doxyfile.sample
+++ b/Doxyfile.sample
@@ -943,7 +943,7 @@ WARN_LOGFILE           =
 # spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = php sites .phpenv
+INPUT                  = php sites .phpenv.php languages
 
 # 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