diff --git a/tests/F_one_definition_rule4/stderr.txt.expect b/tests/F_one_definition_rule4/stderr.txt.expect
new file mode 100644
index 0000000..93a3add
--- /dev/null
+++ b/tests/F_one_definition_rule4/stderr.txt.expect
@@ -0,0 +1 @@
+error: type 'DifferentDefinition4' in different translation unit (def2.rs v.s. def1.rs) has incompatible type definition