diff --git a/library/ajax/edit_user_profile.php b/library/ajax/edit_user_profile.php
index 156bc92f..65aab1d2 100644
--- a/library/ajax/edit_user_profile.php
+++ b/library/ajax/edit_user_profile.php
@@ -154,10 +154,9 @@ switch ($field)
 		break;
 
 	case 'user_points':
-		$value = htmlCHR($value);
 		$value = (float) str_replace(',', '.', $this->request['value']);
 		$value = sprintf('%.2f', $value);
-		if (strlen(strstr($value, '.', true)) > 14)
+		if ($value < 0.0 || strlen(strstr($value, '.', true)) > 14)
 		{
 			$this->ajax_die($lang['WRONG_INPUT']);
 		}