diff --git a/tests/meson.build b/tests/meson.build
index a6b4448..9cd9d37 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -17,6 +17,5 @@ subdir('poly')
 
 # Subdirectories for sandbox tests
 subdir('dobj_sandbox')
-subdir('opatIO_sandbox')
 subdir('composition_sandbox')