diff --git a/libraries/PDF.class.php b/libraries/PDF.class.php
index 1d32cb7df0..289a3f4234 100644
--- a/libraries/PDF.class.php
+++ b/libraries/PDF.class.php
@@ -98,7 +98,7 @@ class PMA_PDF extends TCPDF
     }
 
     /**
-     * Improved with alias expading.
+     * Improved with alias expanding.
      *
      * @return void
      */
diff --git a/libraries/browse_foreigners.lib.php b/libraries/browse_foreigners.lib.php
index f2c5017bbc..3a305040f8 100644
--- a/libraries/browse_foreigners.lib.php
+++ b/libraries/browse_foreigners.lib.php
@@ -130,7 +130,7 @@ function PMA_getHtmlForRelationalFieldSelection($db, $table, $field, $foreignDat
             $rightDescriptionTitle = '';
         } else {
             $rightDescriptionTitle = htmlspecialchars(
-                $rightDescriptionTitle
+                $rightDescription
             );
             $rightDescription = htmlspecialchars(
                 $pmaString->substr(
diff --git a/libraries/export.lib.php b/libraries/export.lib.php
index ad2765a0c6..df2828ec77 100644
--- a/libraries/export.lib.php
+++ b/libraries/export.lib.php
@@ -65,7 +65,7 @@ function PMA_gzencodeNeeded()
 
 /**
  * Output handler for all exports, if needed buffering, it stores data into
- * $dump_buffer, otherwise it prints thems out.
+ * $dump_buffer, otherwise it prints them out.
  *
  * @param string $line the insert statement
  *