diff --git a/includes/processor_tokenizer.inc b/includes/processor_tokenizer.inc
index bd445d6..5bf2700 100644
--- a/includes/processor_tokenizer.inc
+++ b/includes/processor_tokenizer.inc
@@ -21,9 +21,11 @@ class SearchApiTokenizer extends SearchApiAbstractProcessor {
       'spaces' => array(
         '#type' => 'textfield',
         '#title' => t('Whitespace characters'),
-        '#description' => t('Specify the characters that should be regarded as whitespace and therefore used as word-delimiters. Specify the characters as a <a href="@link">PCRE character class</a>.',
+        '#description' => t('Specify the characters that should be regarded as whitespace and therefore used as word-delimiters. ' .
+            'Specify the characters as a <a href="@link">PCRE character class</a>. ' .
+            'Note: For non-English content, the default setting might not be suitable.',
             array('@link' => url('http://www.php.net/manual/en/regexp.reference.character-classes.php'))),
-        '#default_value' => '[^\p{L}\p{N}]',
+        '#default_value' => "[^\\p{L}\\p{N}^']",
       ),
       'ignorable' => array(
         '#type' => 'textfield',