diff --git a/Doxyfile b/Doxyfile
index 185950c45..9adf79158 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -758,7 +758,7 @@ WARN_LOGFILE           =
 # spaces.
 # Note: If this tag is empty the current directory is searched.
 
-INPUT                  = jerry-core jerry-libc
+INPUT                  = jerry-core jerry-ext jerry-port
 
 # 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