diff --git a/oxrlib_example.ini b/oxrlib_example.ini
index 57fd7cff98cb47d72480a89a3460cb842c1698de..e0c449690c69acc25d46ff6e986dbf866ecde4e0 100644
--- a/oxrlib_example.ini
+++ b/oxrlib_example.ini
@@ -35,5 +35,9 @@ ledger = no
 denomination = USD
 
 # Use signs for these currencies in Ledger output.
-# If not specified, defaults to the base currency.
+# If not specified, defaults to the user's preferred currency, which is
+# the first setting found from:
+# 1. the denomination setting above
+# 2. the user's locale
+# 3. the base currency (which defaults to USD)
 signed_currencies = USD, EUR