diff --git a/ngsplanner_seed.sql b/ngsplanner_seed.sql
index 593d865..c5991f4 100644
--- a/ngsplanner_seed.sql
+++ b/ngsplanner_seed.sql
@@ -1,3 +1,4 @@
+delete from site_data;
 delete from skill_tree_data;
 delete from class_skill_data;
 delete from class_skill;