diff --git a/aula/schema_drop.sql b/aula/schema_drop.sql
index adfa460..da3cfb4 100644
--- a/aula/schema_drop.sql
+++ b/aula/schema_drop.sql
@@ -1,4 +1,3 @@
-DROP TABLE IF EXISTS users_threads;
 DROP TABLE IF EXISTS users_groups;
 DROP TABLE IF EXISTS messages;
 DROP TABLE IF EXISTS threads;