diff --git a/tests/exp_help_output.txt b/tests/exp_help_output.txt
index 53fc85bdc10ab4fee81776727965536bd0a9af82..351d9416fa53ed6dbfff5cb846839500a6200ff2 100644
--- a/tests/exp_help_output.txt
+++ b/tests/exp_help_output.txt
@@ -18,5 +18,5 @@ optional arguments:
                         Separate words by DELIMITER. Empty string by default.
   -r SOURCE, --randomsource SOURCE
                         Get randomness from this source. Possible values:
-                        `system'. Default: system
+                        `realdice', `system'. Default: system
   --version             output version information and exit.