1 files changed, 1 insertions, 0 deletions
diff --git a/admin/history.php b/admin/history.php
index e47b33be5..59db2e285 100644
--- a/admin/history.php
+++ b/admin/history.php
@@ -337,6 +337,7 @@ SELECT
   
   $history_lines = array();
   $user_ids = array();
+  $username_of = array();
   $category_ids = array();
   $image_ids = array();
   $tag_ids = array();