diff --git a/js/privatebin.js b/js/privatebin.js
index abc2e47..8219cfd 100644
--- a/js/privatebin.js
+++ b/js/privatebin.js
@@ -973,7 +973,6 @@ $(function() {
             this.showStatus(i18n._('Sending paste...'), true);
 
             var randomkey = sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 0), 0);
-            var cipherdata_attachment;
             var password = this.passwordInput.val();
             if(files && files[0])
             {
diff --git a/lib/model/abstract.php b/lib/model/abstract.php
index ba75a12..5e0435d 100644
--- a/lib/model/abstract.php
+++ b/lib/model/abstract.php
@@ -112,7 +112,7 @@ abstract class model_abstract
      * Get instance data.
      *
      * @access public
-     * @return stdObject
+     * @return stdClass
      */
     abstract public function get();
 
diff --git a/lib/privatebin/abstract.php b/lib/privatebin/abstract.php
index 8102c12..8a6223f 100644
--- a/lib/privatebin/abstract.php
+++ b/lib/privatebin/abstract.php
@@ -86,7 +86,7 @@ abstract class privatebin_abstract
      * Test if a paste exists.
      *
      * @access public
-     * @param  string $dataid
+     * @param  string $pasteid
      * @return bool
      */
     abstract public function exists($pasteid);
@@ -116,7 +116,7 @@ abstract class privatebin_abstract
      * Test if a comment exists.
      *
      * @access public
-     * @param  string $dataid
+     * @param  string $pasteid
      * @param  string $parentid
      * @param  string $commentid
      * @return void
@@ -158,7 +158,7 @@ abstract class privatebin_abstract
      * @access public
      * @param  array $comments
      * @param  int|string $postdate
-     * @return void
+     * @return int|string
      */
     protected function getOpenSlot(&$comments, $postdate)
     {
diff --git a/lib/privatebin/data.php b/lib/privatebin/data.php
index 354fbbe..e1d125a 100644
--- a/lib/privatebin/data.php
+++ b/lib/privatebin/data.php
@@ -124,7 +124,7 @@ class privatebin_data extends privatebin_abstract
      * Test if a paste exists.
      *
      * @access public
-     * @param  string $dataid
+     * @param  string $pasteid
      * @return void
      */
     public function exists($pasteid)
@@ -197,7 +197,7 @@ class privatebin_data extends privatebin_abstract
      * Test if a comment exists.
      *
      * @access public
-     * @param  string $dataid
+     * @param  string $pasteid
      * @param  string $parentid
      * @param  string $commentid
      * @return void