diff --git a/tests/data/conditional_expression.py b/tests/data/cases/conditional_expression.py
similarity index 99%
rename from tests/data/conditional_expression.py
rename to tests/data/cases/conditional_expression.py
index 620a12dc986..c30cd76c791 100644
--- a/tests/data/conditional_expression.py
+++ b/tests/data/cases/conditional_expression.py
@@ -1,3 +1,4 @@
+# flags: --preview
 long_kwargs_single_line = my_function(
     foo="test, this is a sample value",
     bar=some_long_value_name_foo_bar_baz if some_boolean_variable else some_fallback_value_foo_bar_baz,