diff --git a/test-dir/test-0.txt b/test-dir/test-0.txt
index 775ce04..8f90d14 100644
--- a/test-dir/test-0.txt
+++ b/test-dir/test-0.txt
@@ -18,3 +18,4 @@ Trident Test 9
 Trident Test 10
 Trident Test 11
 Trident Test 12
+Trident Test 13