diff --git a/libraries/StringCType.php b/libraries/StringCType.php
index 336664b33d..db8aaeeff7 100644
--- a/libraries/StringCType.php
+++ b/libraries/StringCType.php
@@ -16,7 +16,7 @@ namespace PMA\libraries;
  * @package    PhpMyAdmin-String
  * @subpackage CType
  */
-class StringCType extends StringAbstractType
+class StringCType extends StringTypeAbstract
 {
     /**
      * Checks if a character is an alphanumeric one
diff --git a/libraries/StringNativeType.php b/libraries/StringNativeType.php
index d5934348ab..16a8aa2b4f 100644
--- a/libraries/StringNativeType.php
+++ b/libraries/StringNativeType.php
@@ -15,7 +15,7 @@ namespace PMA\libraries;
  * @subpackage Native
  * @todo       May be join this class with PMA_StringNative class
  */
-class StringNativeType extends StringAbstractType
+class StringNativeType extends StringTypeAbstract
 {
     /**
      * Checks if a character is an alphanumeric one