diff --git a/srcpkgs/cavestory/update b/srcpkgs/cavestory/update
new file mode 100644
index 00000000000..06513a0c501
--- /dev/null
+++ b/srcpkgs/cavestory/update
@@ -0,0 +1,2 @@
+site="http://www.cavestory.org/download/cave-story.php"
+pattern='/downloads/linuxdoukutsu-\K[\d\.]+(?=.tar.bz2)'