diff --git a/inc/parser/parser.php b/inc/parser/parser.php
index 252bd9170523669173923784e99b76770713cdaa..df01f3302fff02a3682ab7e37a2fc0c48c89917e 100644
--- a/inc/parser/parser.php
+++ b/inc/parser/parser.php
@@ -200,6 +200,11 @@ class Doku_Parser_Mode_Plugin extends DokuWiki_Plugin implements Doku_Parser_Mod
     var $Lexer;
     var $allowedModes = array();
 
+    /**
+     * Sort for applying this mode
+     *
+     * @return int
+     */
     function getSort() {
         trigger_error('getSort() not implemented in '.get_class($this), E_USER_WARNING);
     }
diff --git a/lib/plugins/syntax.php b/lib/plugins/syntax.php
index 42a4903ec1e2b99fec69f7aed5f440b729031ae1..4a301f927fa4f4ddb988fc6e10f87d8f84674215 100644
--- a/lib/plugins/syntax.php
+++ b/lib/plugins/syntax.php
@@ -20,9 +20,12 @@ class DokuWiki_Syntax_Plugin extends Doku_Parser_Mode_Plugin {
      * Syntax Type
      *
      * Needs to return one of the mode types defined in $PARSER_MODES in parser.php
+     *
+     * @return string
      */
     function getType(){
         trigger_error('getType() not implemented in '.get_class($this), E_USER_WARNING);
+        return '';
     }
 
     /**
@@ -31,6 +34,8 @@ class DokuWiki_Syntax_Plugin extends Doku_Parser_Mode_Plugin {
      * Defines the mode types for other dokuwiki markup that maybe nested within the
      * plugin's own markup. Needs to return an array of one or more of the mode types
      * defined in $PARSER_MODES in parser.php
+     *
+     * @return array
      */
     function getAllowedTypes() {
         return array();
@@ -47,6 +52,7 @@ class DokuWiki_Syntax_Plugin extends Doku_Parser_Mode_Plugin {
      * 'stack'  - Special case. Plugin wraps other paragraphs.
      *
      * @see Doku_Handler_Block
+     * @return string
      */
     function getPType(){
         return 'normal';
@@ -99,7 +105,10 @@ class DokuWiki_Syntax_Plugin extends Doku_Parser_Mode_Plugin {
     }
 
     /**
-     *  There should be no need to override these functions
+     *  There should be no need to override this function
+     *
+     * @param string $mode
+     * @return bool
      */
     function accepts($mode) {