diff --git a/library/ajax/edit_user_profile.php b/library/ajax/edit_user_profile.php
index 1c6cfeefb..ba51fd847 100644
--- a/library/ajax/edit_user_profile.php
+++ b/library/ajax/edit_user_profile.php
@@ -144,6 +144,9 @@ switch ($field) {
     case 'user_points':
         $value = (float)str_replace(',', '.', $this->request['value']);
         $value = sprintf('%.2f', $value);
+        if (strlen(strstr($value, '.', true)) > 14) {
+            $this->ajax_die($lang['WRONG_INPUT']);
+        }
         $this->response['new_value'] = $value;
         break;