diff --git a/tests/root/includes.txt b/tests/root/includes.txt
index eb8d46e44..d6da137f0 100644
--- a/tests/root/includes.txt
+++ b/tests/root/includes.txt
@@ -64,4 +64,3 @@ While not recommended, it should work (and leave quotes alone).
 
 .. include:: quotes.inc
    :literal:
-   :tab-width: 4