diff --git a/src/propeller/problems/PSB2/snow_day.cljc b/src/propeller/problems/PSB2/snow_day.cljc
index fa23be7..45f4acc 100644
--- a/src/propeller/problems/PSB2/snow_day.cljc
+++ b/src/propeller/problems/PSB2/snow_day.cljc
@@ -79,7 +79,9 @@ Source: https://arxiv.org/pdf/2106.06086.pdf"
                       :cljs (apply + errors)))))
 
 (defn -main
-  "Runs propel-gp, giving it a map of arguments."
+  "Runs the top-level genetic programming function, giving it a map of 
+  arguments with defaults that can be overridden from the command line
+  or through a passed map."
   [& args]
   (gp/gp
     (merge