diff -Naur webkit-1.8.3-ori/Source/WebKit/gtk/webkit/webkitspellcheckerenchant.cpp webkit-1.8.3/Source/WebKit/gtk/webkit/webkitspellcheckerenchant.cpp
--- webkit-1.8.3-ori/Source/WebKit/gtk/webkit/webkitspellcheckerenchant.cpp	2012-12-16 14:58:49.658580218 +0100
+++ webkit-1.8.3/Source/WebKit/gtk/webkit/webkitspellcheckerenchant.cpp	2012-12-16 14:59:05.546538356 +0100
@@ -141,7 +141,7 @@
 
             for (; dicts; dicts = dicts->next) {
                 EnchantDict* dict = static_cast<EnchantDict*>(dicts->data);
-                if (enchant_dict_check(dict, word.get(), wordLength)) {
+                if (enchant_dict_check(dict, word.get(), bytes)) {
                     *misspellingLocation = start;
                     *misspellingLength = wordLength;
                 } else {