diff --git a/i18n_string/i18n_string.pages.inc b/i18n_string/i18n_string.pages.inc
index eb4d8b6..4d0da59 100644
--- a/i18n_string/i18n_string.pages.inc
+++ b/i18n_string/i18n_string.pages.inc
@@ -398,8 +398,9 @@ function i18n_string_locale_translate_edit_form_submit($form, &$form_state) {
   // Invoke locale submission.
   locale_translate_edit_form_submit($form, $form_state);
   $lid = $form_state['values']['lid'];
-  $i18n_string_object = i18n_string_get_by_lid($lid);
-  $i18n_string_object->cache_reset();
+  if ($i18n_string_object = i18n_string_get_by_lid($lid)) {
+    $i18n_string_object->cache_reset();
+  }
   foreach ($form_state['values']['translations'] as $key => $value) {
     if (!empty($value)) {
       // An update has been made, so we assume the translation is now current.