diff --git a/main/migrate.sql b/main/migrate.sql
index e0e8ab4..4892634 100644
--- a/main/migrate.sql
+++ b/main/migrate.sql
@@ -8,6 +8,15 @@ BEGIN
         DROP INDEX IF EXISTS idx_ip_created ON registrations;
         ALTER TABLE registrations DROP COLUMN ip;
     END IF;
+
+    IF NOT EXISTS (
+        SELECT * FROM information_schema.columns 
+        WHERE table_name = 'users' AND column_name = 'is_blocked'
+    ) THEN
+        ALTER TABLE users 
+        ADD COLUMN is_blocked TINYINT(1) NOT NULL DEFAULT 0,
+        ADD COLUMN block_reason TEXT;
+    END IF;
 END //
 DELIMITER ;