diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 245087e..675fc6b 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -193,8 +193,9 @@ function filter_format_exists($format_id) {
  *   The name of the format.
  */
 function filter_admin_format_title($format_id) {
-  $format = filter_format_load($format_id);
-  return $format->label();
+  if ($format = filter_format_load($format_id)) {
+    return $format->label();
+  }
 }
 
 /**