diff --git a/tests.toml b/tests.toml
index 65d852d..ded5f7f 100644
--- a/tests.toml
+++ b/tests.toml
@@ -2,5 +2,6 @@ test_format = 1.0
 
 [default]
 
+    exclude = ["install.subdir"]
 
     test_upgrade_from.b9c2675f.name = "Upgrade from 3.2.0"