diff --git a/yesod/update-hsfiles.sh b/yesod/update-hsfiles.sh
new file mode 100755
index 00000000..746450e2
--- /dev/null
+++ b/yesod/update-hsfiles.sh
@@ -0,0 +1,17 @@
+#!/bin/bash -ex
+
+rm -rf yesod-scaffold
+git clone https://github.com/yesodweb/yesod-scaffold yesod-scaffold
+cd yesod-scaffold
+
+for branch in `git branch --no-color -a | grep remotes | grep -v HEAD | grep -v master`
+do
+    git checkout $branch
+    git checkout -b ${branch##*/}
+done
+
+git checkout master
+runghc build.hs
+cp hsfiles/* ../hsfiles
+
+rm -rf yesod-scaffold