diff --git a/org_mode_samples/affiliated_keyword/optional_value.org b/org_mode_samples/affiliated_keyword/optional_value.org
new file mode 100644
index 00000000..99ebc24e
--- /dev/null
+++ b/org_mode_samples/affiliated_keyword/optional_value.org
@@ -0,0 +1,3 @@
+#+CAPTION[foo]: *bar*
+#+CAPTION[*lorem* ipsum]: dolar
+1. baz