diff --git a/lang/interpret_test/TestAstFunc2/clear-env-on-var.txtar b/lang/interpret_test/TestAstFunc2/clear-env-on-var.txtar
new file mode 100644
index 00000000..1e9ec3ac
--- /dev/null
+++ b/lang/interpret_test/TestAstFunc2/clear-env-on-var.txtar
@@ -0,0 +1,9 @@
+-- main.mcl --
+$wat = $x
+$f = func($x) {
+	$wat
+}
+
+test $f("foo") {}
+-- OUTPUT --
+# err: errSetScope: scope-checking the function definition `$f`: failed to set scope on function body: variable x not in scope